Transition Elements And Coordination Compounds Biology Essay

Transition Elements And Coordination Compounds Biology Essay As we know, Manganese is found in the first row of transition metal with the electron configuration [Ar] 3d5 4s2. Besides that, Manganese has different type of oxidation states when it appears as a compound and the oxidation state is from Mn(-III) until Mn(VII). So, we know that the compounds of manganese range in the oxidation number have a different of 10 electrons. In the experiment 1, we prepare tris(acetylacetonato)manganese(III), Mn(acac)3 by using manganese(II) chloride tetrahydrate and potassium permanganate act as oxidation agent to oxidise manganese(II) chloride to acetylacetonemanganese(III). Manganese(III) acetylacetonate is an one- electron oxidant. Manganese(III) acetylacetonate is high spin. It has also a distorted octahedral structure. This distortion is due to the Jahn-Teller effect. (Absolute Astronomy, 2009). The structure of Manganese(III) acetylacetonate is shown as below:- (Source: Tcieurope.com) The equation is as follow:- MnCl2 + 4H2O Mn(H2O)4Cl2 Mn(H2O)4] Cl + 2HC5H7O2 + NaC2H3O2 Mn(C5H7O2)2 + NaCl + HC2H2O2 4Mn(C5H7O2)2 + KMnO4 + 7HC5H7O2 + HC2H3O2 5Mn(C5H7O2)3 + KC2H3O2 + 4H2O Furthermore, bis(acetylacetonato)oxovanadium(IV) is also known as Vanadyl acetylacetonate, VO(acac)2. As we know, it is a blue green complex. bis(acetylacetonato)oxovanadium(IV) has a vanadyl group, VO2+. The vanadyl group is bonded to 2 acetylacetonate anions and the structure of the compound is as follow:- This complex can be made from vanadium(IV) or vanadium(V). In our experiment, bis(acetylacetonato)oxovanadium(IV) was prepared from vanadium(V) oxide and the equation is as follow:- V2O5 + 2H2SO4 + EtOH 2VOSO4 + 3H2O + CH3CHO VOSO4 + 2HC5H7O2 + Na2CO3 VO(C5H7O2)2 + Na2So4 + H2O + CO2 (Absolute Astronomy, 2009) Besides that, both of the acetylacetonato (acac) groups of bis(acetylacetonato)oxovanadium(IV) are able to be exchanged with organic ligands having coordinating atoms of different potentialities. (Maurya, 2003) Both Manganese(III) acetylacetonate and bis(acetylacetonato)oxovanadium(IV) are bond with acetylacetonate which known as ligand. The precursor for acetylacetonate is acetylacetone with formula CÂ ­5H8O2. However, acetylacetonate is an anion. It can bind to corresponding cation but it very hard to exist as a free ion in solution. In addition, Cobalt is a hard, gray metal. It has a proton number 27. Besided that, there are two types of cobalt ions namely Co2+ and Co3+. First, Co3+ ion is more weaker than the Co2+ ion. However, the complex ion formed with higher oxidation state is more stable. ( Â °zmir Institute of Technology, n.d.). So that, Cobalt(III) complexes are kinetically inert. Co3+ can undergo a process known as ligand exchange reactions slowly which compared to Co2+ complexes. The cobalt(III) complexes are usually in octahedral shape. In the experiment, chloropentaamminecobalt(III) chloride is being synthesized. The structure is as follow:- (Source: Chemicalbook.com) The complex is prepared by the oxidation of ammoniacal solution of cobalt(II) salts by using hydrogen peroxide. The formula is as follow:- Co2+ + NH4+ + 1/2H202 → [Co(NH3)5H20]3+ [Co(NH3)5H20]3+ + 3Cl- → [Co(NH3)5Cl]Cl2 + H20 ( Â °zmir Institute of Technology, n.d.) Materials and Methods : Experiment one 5g of MnCl2.4H20 1.3g of NaC2H3O2.3H2O NaC2H3O2.3H2O Dissolved in 200cm3 of distilled water. 21cm3 of 2HC5H7O2 slowly added 1g of KMnO4 Present of two-phase layer Solution A added in with stirring Dissolved in 50cm3 of distilled water. 13g of NaC2H3O2.3H2O Solution B added in Solution A Solution B Dissolved in 50cm3 of distilled water. Heated with 60oC for 30 minutes Complex washed with acetone Solid complex filtered by suction Resultant solution was cooled with ice-cold water Experiment 2 Experiment 3 Recrystallise Results : For experiment 1, from the equation below, I can get the theoretical mass of the Mn(acac)3 solid complex by : Mn(H2O)4] Cl + 2HC5H7O2 + NaC2H3O2 Mn(C5H7O2)2 + NaCl + HC2H2O2 4Mn(C5H7O2)2 + KMnO4 + 7HC5H7O2 + HC2H3O2 5Mn(C5H7O2)3 + KC2H3O2 + 4H2O From the equation, we know that 1 mol of Mn(H2O)4] Cl = 1 mol of Mn(C5H7O2)2. So, 5 g of Mn(H2O)4] Cl = 0.0308 mol is also = 0.0308 mol of Mn(C5H7O2)2. From the second equation, 4 mol of Mn(C5H7O2)2 = 5 mol of Mn(acac)3 0.0308 mol of Mn(C5H7O2)2 = 0.0385 mol. Of Mn(acac)3 So, theoretical weight of Mn(acac)3 = 0.0385 mol X 252.938 g/mol theoretical weight of Mn(acac)3 = 9.7381 g The following shows the method to get our experimental weight: Weight of Sample tube 14. 8180 g Weight of Sample tube + solid complex , Mn(acac)3 18.7785 g So, the experimental weight of Mn(acac)3complexes were 3.9605 g Percentage yield of Mn(acac)3complexes we get was = 3.9605 g / 9.7381 g X 100 % = 40.67 % Next, Magnetic moment of Mn(acac)3complexes were calculated as follow : m = 0.9278g- 0.8193g = 0.1085g Ro= -33 L = 2.4cm R= 1165 (paramagnetic) CBal = 1 X(g) = [CBal X L X (R-Ro) ] / 109 X m X(g) of Mn(acac)3complexes = 2.65 X 10-5 So, Mn(acac)3complexes are paramagnetic FTIR Interpretation of IR spectrum for complexes will be written in discussion. For experiment 2, from the equation below, I can get the theoretical mass of the [Co(NH3)5Cl]Cl2 solid complex by : Co2+ + NH4+ + 1/2H202 → [Co(NH3)5H20]3+ [Co(NH3)5H20]3+ + 3Cl- → [Co(NH3)5Cl]Cl2 + H20 From the above equation, 1 mol of Co2+ = 1 mol of [Co(NH3)5H2O]3+ 12g of Co2+ = 0.0504 mol So 0.0504 mol of [Co(NH3)5H20]3+= 0.0504 mol of [Co(NH3)5Cl]Cl2 Theoretical weight of [Co(NH3)5Cl]Cl2 solid complexes = 0.0504 mol X 250.433 g/mol = 12.6218 g The following shows the method to get our experimental weight: Weight of Sample tube 14. 9285 g Weight of Sample tube + solid complex , 22.3723 g So, the experimental weight of [Co(NH3)5Cl]Cl2 solid complexes = 7.4438 g Percentage yield of [Co(NH3)5Cl]Cl2complexes = 7.4438 g / 12.6218 g X 100 % = 58.98 % Next, Magnetic moment of [Co(NH3)5Cl]Cl2complexes were calculated as follow : m = 0.9264g- 0.8207g = 0.1057g Ro= -36 L = 2.1cm R= -41 (dimagnetic) CBal = 1 X(g) = [CBal X L X (R-Ro) ] / 109 X m X(g) of [Co(NH3)5Cl]Cl2complexes = -9.9338 X 10-8 So, [Co(NH3)5Cl]Cl2complexes are diamagnetic FTIR For experiment 3, from the equation below, I can get the theoretical mass of the [Vo(acac)2(H2O)] solid complex by : V2O5 + 2H2SO4 + EtOH 2VOSO4 + 3H2O + CH3CHO VOSO4 + 2HC5H7O2 + Na2CO3 VO(C5H7O2)2 + Na2So4 + H2O + CO2 From the above equation, 1 mol of V2O5 = 2 mol of VOSO4 2g 0f V2O5 = 0.011 mol = 0.022 mol of VOSO4 2 mol of VOSO4 = 2 mol of VO(C5H7O2)2 Theoretical weight of VO(C5H7O2)2= 0.022 mol X 264.94 g/mol = 5.8287 g The following shows the method to get our experimental weight: Weight of Sample tube 14.8445 g Weight of Sample tube + solid complex , 18.5818 g So, the experimental weight of VO(C5H7O2)2= 3.7373 g Percentage yield of VO(C5H7O2)2= 3.7373 g / 5.8287 g X 100% = 64.12% Next, Magnetic moment of impure VO(C5H7O2)2 complexes were calculated as follow : m = 0.8880g 0.8244 g = 0.0636g Ro= -34 L = 2.5cm R= 72 (paramagnetic) CBal = 1 X(g) = [CBal X L X (R-Ro) ] / 109 X m X(g) of impure VO(C5H7O2)2complexes = 4.17 X 10-6 So, VO(C5H7O2)2complexes are paramagnetic Magnetic moment of pure VO(C5H7O2)2 complexes were calculated as follow : m = 0.8947g -0.8211 = 0.0736g Ro= -33 L = 2.3cm R= 144 (paramagnetic) CBal = 1 X(g) of pure VO(C5H7O2)2complexes = 5.53 X 10-6 FTIR Interpretation of IR spectrum for complexes will be written in discussion. Impure VO(C5H7O2)2 Pure VO(C5H7O2)2 Discussion : Interpretation of IR spectrum for tris(acetylacetonato)manganese(III): Wavenumber (cm-1) Description of bands 2921.1 2959.7 -relative intensity : weak CH stretching of CH3 1593.9 1508.0 -relative intensity : strong -(C=C) stretching -(C=CH) deformation 1387.2 -relative intensity : strong -(CH3)- symmetric C-H deformation 1253.5 -relative intensity : strong -(C=C) stretching -(C-CH3) stretching 1016.8 -relative intensity : strong -(CH3) out-of plane bending 923.2 -relative intensity : strong -(C-CH3) stretching 777.0 -relative intensity : strong -(C-H)deformation 678.1 -relative intensity : medium/ strong -(C-CH3)stretching,(O=C-CH3) deformation -(Mn-O) stretching indicates metal-ligand bond 460.1 relative intensity : weak (C=C) stretching,(C-CH3) stretching -(Mn-O) stretching that also indicatesmetal-ligand bond Interpretation of IR spectrum for chloropentaamminecobalt(III) chloride: Wavenumber (cm-1) Description of bands 3258.0 -relative intensity : strong NH3stretch 1576.2 -relative intensity : medium -degenerate asymmetric NH3stretching 1307.8 -relative intensity : strong -symmetric NH3angle deformation 844.9 -relative intensity : strong -NH3rocking 487.6 -(Co-Cl) stretching indicates metal-ligand bond Interpretation of IR spectrum for impure bis(acetylacetonato)oxovanadium(IV): Wavenumber (cm-1) Description of bands 1556.8 1521.0 -relative intensity : medium (C=O) stretching -( C=C),(C=CH) stretching 1418.7 -relative intensity : medium -(CH3) deformation 1374.0 1357.6 -relative intensity : strong -(C=O) stretching -(CH3) deformation mode 1286.6 -relative intensity : strong -(C=C=C) stretching 998.2 -relative intensity : strong and sharp -stretching of V=O bond -it also indicates the metal-ligand bond. 1018.6 -relative intensity : strong -(CH3) rocking 936.1 -relative intensity : strong -(C-CH3) stretching -(C=O) stretching 798.6 -relative intensity : medium -(C-H) out-of-plane bending 685.9 657.2 -relative intensity : medium/ weak -(ring) deformation out-of-plane bending for: 609.2 -(ring) deformation Interpretation of IR spectrum for pure bis(acetylacetonato)oxovanadium(IV): Wavenumber (cm-1) Description of bands 1563.0 1520.0 -relative intensity : medium (C=O) stretching -( C=C),(C=CH) stretching 1499.6 -relative intensity : medium -(CH3) deformation 1380.0 1349.0 -relative intensity : strong -(C=O) stretching -(CH3) deformation mode 1288.3 -relative intensity : strong -(C=C=C) stretching 995.0 -relative intensity : strong and sharp -stretching of V=O bond -it also indicates the metal-ligand bond. 1018.2 -relative intensity : strong -(CH3) rocking 935.7 -relative intensity : strong -(C-CH3) stretching -(C=O) stretching 798.8 798.0 -relative intensity : medium -(C-H) out-of-plane bending 686.0 -relative intensity : medium/ weak -(ring) deformation out-of-plane bending for: 609.7 -(ring) deformation FTIR is known as Fourier Transform Infrared Spectroscopy. This FTIR can be used to identify different types of chemical bond which is either organic compound or inorganic compound. So no two different compounds will have same spectrum. However, FTIR may cause destructive to our sample compare to magnetic susceptibility which is non-destructive. Besides that, magnetic susceptibility can be group by paramagnetic, diamagnetic and ferromagnetic. Paramagnetic substance is those attracted by strong magnetic field but those repelled by magnetic field are diamagnetic substances. Besides that, we can also confirm the shape by using magnetic susceptibility. The Cobalt ion to form Chloropentaamminecobalt(III) chloride has 6 electron in d orbital. According to crystal field theory, if the complex is in octahedral shape, the electron can be arranged like below:- Low-spin high-spin eg eg t2g t2g If the complex is in tetrahedral shape, the electron are arranged as below:- t2g eg Magnetic Susceptibility for chloropentaamminecobalt(III) chloride is -9.9338 X 10-8 and it is diamagnetic. Only the low-spin octahedral shape shows diamagnetic properties, so the shape of chloropentaamminecobalt(III) chloride is octahedral. Furthermore, for tris(acetylacetonato)manganese(III), the Mn3+ ion has 4 electron in d orbital, and the arrangement in octahedral shape will as follows:- Low-spin High-spin eg eg t2g t2g For the arrangement in tetrahedral shape, the electrons are arranged as below:- t2g eg Magnetic Susceptibility for tris(acetylacetonato)manganese(III) is 2.65 X 10-5 and it is paramagnetic. So the shape of tris(acetylacetonato)manganese(III) is octahedral. However we cannot determine whether is low-spin or high-spin in this situation because we are not calculating the pairing energy for the complex. In addition, there is only one electron in d orbital for vanadium ion of bis(acetylacetonato)oxovanadium(IV). Magnetic susceptibility for it is 4.17 X 10-6 and it is paramagnetic. The shape is octahedral and the arrangement of electron is as follow:- eg t2g Acetylacetonate is delocalized and formed resonance structure as follow : The structure of Co(NH3)5Cl]Cl2 is as follow : The structure of [VO(ACAC)2] is as follow : Moreover, oxovanadium complexes act as insulin mimetics, nucleolytic and anticancer. To recognize insulin- mimetic complexes, a simple and fast in-vitro assay is developed. Besides that, an accurate assessment of the cells taken up of glucose, in-vitro assay with Ehrlich can be used. The oxovanadium complexes can cleave DNA without the present of hydrogen peroxide. Then, its nucleolytic efficiency is also greater but it is affected by the choice of buffer and pH. The oxovanadium complexes is also an anticancer agent against human ovarian cancer. Actually, I have acquired a lot of new knowledge among these three experiments. First, experiment one and two are easier to carry out compared to experiment three. This is because experiment one and two involved oxidation which Mn2+ was oxidized to Mn3+ ; Co2+ was oxidized to Co3+. Whereas experiment 3 involved reduction which reduced VO5+ to VO4+. At the beginning of each experiments, we heated up the sample in open air. It is easier to oxidize the compound than reduce the compound in the presence of oxygen. So, we need more time to heated the V2O5. During the first time of experiment three, I failed to get a blue color solid powder. This is because I heated the sample in the open air and I failed to control the heater. So, after the filtration process, I got a white solid powder. Therefore, I learnt from the mistake and during the second time I used reflux method. This time I can control the heating process well. The ethanol was not evaporated much. After filtration, I got quite a lot of blue solid powder. So, I knew that, for reduction process, we cannot heat the sample too quickly and heat too long. If we heated too long, most of the product will evaporate. Next, from the FTIR spectrum, I can observe that the spectrum from the first and third experiment are quite similar. This is because, the peak from the spectrum are mostly from the acetylacetonato (acac). However, spectrum from experiment two is quite different from other experiment because mostly the peaks come from Cl compared to other experiments. The percentage yield of the complexes from all the three experiment that I have calculate out was not so high. This is maybe due to the washing of the product with acetone, some of the product was dissolved and washed away. However, there are other factors which cause problem to our results. First, most of the heating plate we used cannot function well. I changed many heating plate during the experiment. Next, we have kept our half way done sample for more than 7 days. The results may not be so accurate anymore. Another factor maybe due to the volume and amount of the sample and other material we measure are not accurate. Our product may contain some impurities. However, some of the precaution was taken during the experiment. In these experiments, some of the chemical was corrosive and poisonous such as concentrated HCl and H2SO4. So, we poured the chemical carefully in the fume board. Next, before using any instrument, we read through the manual to understand the steps to function the magnetic susceptibility balance. We also taken down some important steps to function the FTIR spectrophotometer. I have asked some help from lab assistant on where to get the material for experiment. Conclusion : The percentage yield for tris(acetylacetonato)manganese(III) is 40.67%, chloropentaamminecobalt(III) chloride is 58.98% and (acetylacetonato)oxovanadium(IV) is 64.12%. For tris(acetylacetonato)manganese(III), the peak for two Mn-O bond are at the region approximately 678.1 cm-1 and 458.3 cm-1. For chloropentaamminecobalt(III) chloride, the peak for Co-N bond is at 669.2 cm-1 while Co-Cl bond is at 486.2 cm-1. For bis(acetylacetonato)oxovanadium(IV), the peak for V=O bond is at 997.4 cm-1 region. Magnetic Susceptibility for tris(acetylacetonato)manganese(III) is 2.65 x 10-5 and it is paramagnetic. Besides, Magnetic Susceptibility for chloropentaamminecobalt(III) chloride is -9.93x 10-8 and is diamagnetic. For bis(acetylacetonato)oxovanadium(IV), magnetic susceptibility for impure complex and pure complex are 4.17X 10-6 and 5.53X 10-6 respectively. They are paramagnetic.

Cjs 240 week 2 checkpoint Essay

Juvenile delinquency along with the punishments associated with it seems to be one of the touchier subjects in today’s society. When it comes to juveniles, there are a number of different things that lead them to commit crimes. Things like the level of crime in their community, the bond they have with their parents, and even their economic status all lead juveniles to crime. In order for communities to even start to deter crime among juveniles, they need to start implementing a number of sources. One strategy will not just wipe out juvenile crime, you need a combination of many things to keep children away from crime. When it comes to general deterrence, my opinion is that it starts at home. While a child is growing up, his or her parents play a large role in their child’s concept and view of the world. They also help their children deal with feelings and issues that they come across. A positive up bringing will more than likely create a positive outcome, while a negative up bringing is more likely to produce a negative outcome. If a parent is into illegal behavior, the child is likely to follow in those footsteps. In terms of specific deterrence, this comes from people like social workers. Social workers are there to help the children in desperate need. They produce the positive influence that many from broken homes and poverty so desperately need and do not receive at home. With situational crime prevention, I believe this falls on the community as a whole. It is up to the community to make sure that there is safety. If a community is not safe, crime will breed like wild fire. With all the concepts on juvenile crime prevention, I believe that general deterrence is the one that is going to have the most effect. Parents have to determine the right amount of discipline. Too much discipline can cause your child to turn to illegal activity and the same goes for too little discipline. Too many times have we seen that parents want to be friends and not parents. Fix that problem, and you are one step closer to stop juvenile crime.

A Case Study On Shazad Hussain Essay - 1149 Words

This paper presents a case study on Shazad Hussain. Shazad is a 41-year old who is married with two children. This case study will focus on the developmental theories of Erik Erikson, Abraham Maslow, and Carl Rogers as they are applied to Shazad. Situational evidence from Shazad’s life is provided to either support or refute the theories of these renowned psychologists. A Case Study of Shazad Hussain In the following assignment I am going to conduct a human growth and development case study on Shazad Hussain. I will outline the different patterns of development in middle adulthood, such as physical, cognitive, and socio-emotional in relation to Erik Erikson’s psychosocial development theory. Abraham Maslow’s hierarchy of needs theory and Carl Rogers’ theory of personality and human development will also be used in the case study. I will relate these theories to Shazad’s current situation and how the significant people in his life can respond to his needs. I shall apply my understanding of psychological perspectives of human growth and development that I have learned throughout this course. Biography This case study focuses on Shazad Hussain. Shazad is a 41-year old male who is married with a wife and two children. His wife is 36 years old and is of Vietnamese descent. Shazad himself was born in Guyana, South America and is of West Indian descent. Shazad arrived in America at the age of six and has never returned to Guyana. He first went to Anchorage, Alaska

Examples of the Null Hypothesis

The null hypothesis—which assumes that there is no meaningful relationship between two variables—may be the most valuable hypothesis for the scientific method because it is the easiest to test using a statistical analysis. This means you can support your hypothesis with a high level of confidence. Testing the null hypothesis can tell you whether your results are due to the effect of manipulating ​the dependent variable or due to chance. What Is the Null Hypothesis? The null hypothesis states there is no relationship between the measured phenomenon (the dependent variable) and the independent variable. You do not​ need to believe that the null hypothesis is true to test it. On the contrary, you will likely suspect that there is a relationship between a set of variables. One way to prove that this is the case is to reject the null hypothesis. Rejecting a hypothesis does not mean an experiment was bad or that it didnt produce results. In fact, it is often one of the first steps toward further inquiry. To distinguish it from other hypotheses, the null hypothesis is written as  Ã¢â‚¬â€¹H0  (which is read as â€Å"H-nought,† H-null, or H-zero). A significance test is used to determine the likelihood that the results supporting the null hypothesis are not due to chance. A confidence level of 95 percent or 99 percent is common. Keep in mind, even if the confidence level is high, there is still a small chance the null hypothesis is not true, perhaps because the experimenter did not account for a critical factor or because of chance. This is one reason why its important to repeat experiments. Examples of the Null Hypothesis To write a null hypothesis, first start by asking a question. Rephrase that question in a form that assumes no relationship between the variables. In other words, assume a treatment has no effect. Write your hypothesis in a way that reflects this. Question Null Hypothesis Are teens better at math than adults? Age has no effect on mathematical ability. Does taking aspirin every day reduce the chance of having a heart attack? Taking aspirin daily does not affect heart attack risk. Do teens use cell phones to access the internet more than adults? Age has no effect on how cell phones are used for internet access. Do cats care about the color of their food? Cats express no food preference based on color. Does chewing willow bark relieve pain? There is no difference in pain relief after chewing willow bark versus taking a placebo. Null Hypothesis Examples

Designing a Sustainable Solid Waste Collection System in...

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Technology is Killing Humanity Free Essays

Today, our world is a lot quieter than it used to be. As a student and as a passenger of public transport, I now barely see people smiling, talking or making eye contact at schools and in public places. Finally, I realize why people rarely communicate with others now, and this kind of big issue is caused by a tiny thing that we all carry in our pockets every single day: smartphone. We will write a custom essay sample on Technology is Killing Humanity or any similar topic only for you Order Now In conclusion, the excessive use of mobile Internet devices is killing humanity by destroying the meaningfulness of communication and human interaction. The eyes are the windows to the soul as the popular phrase. According to Quantified Impressions, a Texas-based communications analytics company, a normal adult makes eye contact between 30 and 60 percent of the time in a daily conversation, however, emotional connection is built when eye contact is made during 60-70 percent of the conversation. (Gregoire) In other words, the more eye contact, the more of a connection is made. Unfortunately, people now tend to avoid or reduce eye-contact with others because their eyes are glued to their mobile devices most of the time. According to recent estimates, the average American spends more than five hours per day using digital devices on computers and mobile devices (the number is relatively higher for those who work in front of computer screens), and another four and a half hours watching television. (Gregoire) If we assume that an average person everyday spends eight hours on sleeping, one and a half hours on transportation, eight hours on work, and four and a half hours on watching television (as the research above suggests), that person only has two hours left to do whatever he or she wants to do. Would that person spend two hours on communicating with others face to face? Seemingly, the answer is â€Å"No. † Some people may argue that mobile Internet devices actually provide more opportunities for us to communicate with our family, friends or potential friends which can bring people all over the world closer, because people now can use those social Apps such as Facebook, Tweeter and Instagram to interact with others through their smartphones anytime anywhere. Nevertheless, their opinion is totally contradictory to the fact. Instead of bringing people together, social Apps are now changing the human society into a world that is full of narcissism. Today, most people only care about the number of likes, comments and followers they have on their accounts instead of truly sharing their life experience. Unfortunately, none of us are as popular as pop stars. Therefore, people need to do extra work to earn more likes and comments, and the only way to satisfy their vanity is to keep commenting on others’ posts. This kind of act can cause a vicious circle as people cannot stop making meaningless comments. Indeed, most of us are not truly interacting with others but throwing garbage to them as well as receiving garbage from them anytime anywhere. Besides using social Apps to get those so-called happiness, people have been falling in love with text messages for a long long time and there is no sign this phenomenon is fading. Even though texting is a little bit more similar to the traditional forms of communication such as writing letters or emailing, its impact to human communication is extremely negative and destructive. â€Å"Miscommunication is perhaps one of the most common, if not the most frustrating problems with Smartphones and relationships, especially when it comes to text message,† says Lindsey Chadwick, an online editorial staff. When we actually talk to a person no matter face to face or through a phone call, we can clearly understand the tone and the meaning that the person tries to express; however, a text message can confuse us or perhaps it can cause some problems between us and our friends, and this is exactly what miscommunication is. The worst thing that is caused by text messages is that our young generation’s literacy is getting worse. According to Studentfirst. com, on the 2009 NAEP Reading Test, about 26 percent of eighth graders and 27 percent of twelfth graders scored below the â€Å"basic† level, and only 32 percent of eighth graders and 38 percent of twelfth graders are at or above grade level. (Report 1) If you pay attention to the way that our teenagers text, you can find a huge difference between their own language and the normal English. Plus, a recent report by the Pew Internet American Life Project, texting ranks as the number one mode of communication among them. Kids between the ages of 12 and 17 text a median of 60 times a day — up from 50 in 2009. (Samakow) As we can see, texting has becoming a teens’ daily routine. Therefore, when they get used to the way they text their friends, they will tend to apply the same thing at school. In my opinion, the only way to make people do not excessively use mobile Internet devices is to lessen or limit their opportunity to reach the Internet. Today, we have seen more and more mobile companies offer various â€Å"unlimited† package to the mobile users in order to let them access the Internet without any constriction. However, the mobile companies should stop promoting or offering this kind of service, and they should only provide â€Å"unlimited data† package to those who really have a strong need to text or to access the Internet, such as I. T. professionals or international businessman. Moreover, if someone applies an â€Å"unlimited† package, he or she will need to provide some specific and significant information to the mobile company in order to prove that his or her case is qualified to use the package. Canceling â€Å"unlimited† package isn’t enough to lessen people’s opportunity to connect to the Internet because wireless signals are everywhere. Therefore, hotels, large-scale business quarter, restaurants, entertainment centers, beauty centers, gyms and information consultation should not provide unrestricted wifi to their customers. Instead, they could set a time limit to restrict their customers to connect to wifi network. For example, if a person’s device has been connecting to wifi for 15 minutes, he or she will not be able to connect to it for the next 10 minutes. At this point, we do not have to worry too much about the mobile game addiction because nowadays most of the mobile-game companies have set an access limitation for their games to prevent their users from addiction. Lastly and most importantly, schools and guardians should spend more time on teaching their children the true meaningfulness of communication and human interaction, and teaching them how to talk or communicate with others at the same time, instead of just letting them stick with the computers and make â€Å"connection† to the â€Å"real† world. How to cite Technology is Killing Humanity, Essays Technology is Killing Humanity Free Essays Today, our world is a lot quieter than it used to be. As a student and as a passenger of public transport, I now barely see people smiling, talking or making eye contact at schools and in public places. Finally, I realize why people rarely communicate with others now, and this kind of big issue is caused by a tiny thing that we all carry in our pockets every single day: smartphone. We will write a custom essay sample on Technology is Killing Humanity or any similar topic only for you Order Now In conclusion, the excessive use of mobile Internet devices is killing humanity by destroying the meaningfulness of communication and human interaction. The eyes are the windows to the soul as the popular phrase. According to Quantified Impressions, a Texas-based communications analytics company, a normal adult makes eye contact between 30 and 60 percent of the time in a daily conversation, however, emotional connection is built when eye contact is made during 60-70 percent of the conversation. (Gregoire) In other words, the more eye contact, the more of a connection is made. Unfortunately, people now tend to avoid or reduce eye-contact with others because their eyes are glued to their mobile devices most of the time. According to recent estimates, the average American spends more than five hours per day using digital devices on computers and mobile devices (the number is relatively higher for those who work in front of computer screens), and another four and a half hours watching television. (Gregoire) If we assume that an average person everyday spends eight hours on sleeping, one and a half hours on transportation, eight hours on work, and four and a half hours on watching television (as the research above suggests), that person only has two hours left to do whatever he or she wants to do. Would that person spend two hours on communicating with others face to face? Seemingly, the answer is â€Å"No. † Some people may argue that mobile Internet devices actually provide more opportunities for us to communicate with our family, friends or potential friends which can bring people all over the world closer, because people now can use those social Apps such as Facebook, Tweeter and Instagram to interact with others through their smartphones anytime anywhere. Nevertheless, their opinion is totally contradictory to the fact. Instead of bringing people together, social Apps are now changing the human society into a world that is full of narcissism. Today, most people only care about the number of likes, comments and followers they have on their accounts instead of truly sharing their life experience. Unfortunately, none of us are as popular as pop stars. Therefore, people need to do extra work to earn more likes and comments, and the only way to satisfy their vanity is to keep commenting on others’ posts. This kind of act can cause a vicious circle as people cannot stop making meaningless comments. Indeed, most of us are not truly interacting with others but throwing garbage to them as well as receiving garbage from them anytime anywhere. Besides using social Apps to get those so-called happiness, people have been falling in love with text messages for a long long time and there is no sign this phenomenon is fading. Even though texting is a little bit more similar to the traditional forms of communication such as writing letters or emailing, its impact to human communication is extremely negative and destructive. â€Å"Miscommunication is perhaps one of the most common, if not the most frustrating problems with Smartphones and relationships, especially when it comes to text message,† says Lindsey Chadwick, an online editorial staff. When we actually talk to a person no matter face to face or through a phone call, we can clearly understand the tone and the meaning that the person tries to express; however, a text message can confuse us or perhaps it can cause some problems between us and our friends, and this is exactly what miscommunication is. The worst thing that is caused by text messages is that our young generation’s literacy is getting worse. According to Studentfirst. com, on the 2009 NAEP Reading Test, about 26 percent of eighth graders and 27 percent of twelfth graders scored below the â€Å"basic† level, and only 32 percent of eighth graders and 38 percent of twelfth graders are at or above grade level. (Report 1) If you pay attention to the way that our teenagers text, you can find a huge difference between their own language and the normal English. Plus, a recent report by the Pew Internet American Life Project, texting ranks as the number one mode of communication among them. Kids between the ages of 12 and 17 text a median of 60 times a day — up from 50 in 2009. (Samakow) As we can see, texting has becoming a teens’ daily routine. Therefore, when they get used to the way they text their friends, they will tend to apply the same thing at school. In my opinion, the only way to make people do not excessively use mobile Internet devices is to lessen or limit their opportunity to reach the Internet. Today, we have seen more and more mobile companies offer various â€Å"unlimited† package to the mobile users in order to let them access the Internet without any constriction. However, the mobile companies should stop promoting or offering this kind of service, and they should only provide â€Å"unlimited data† package to those who really have a strong need to text or to access the Internet, such as I. T. professionals or international businessman. Moreover, if someone applies an â€Å"unlimited† package, he or she will need to provide some specific and significant information to the mobile company in order to prove that his or her case is qualified to use the package. Canceling â€Å"unlimited† package isn’t enough to lessen people’s opportunity to connect to the Internet because wireless signals are everywhere. Therefore, hotels, large-scale business quarter, restaurants, entertainment centers, beauty centers, gyms and information consultation should not provide unrestricted wifi to their customers. Instead, they could set a time limit to restrict their customers to connect to wifi network. For example, if a person’s device has been connecting to wifi for 15 minutes, he or she will not be able to connect to it for the next 10 minutes. At this point, we do not have to worry too much about the mobile game addiction because nowadays most of the mobile-game companies have set an access limitation for their games to prevent their users from addiction. Lastly and most importantly, schools and guardians should spend more time on teaching their children the true meaningfulness of communication and human interaction, and teaching them how to talk or communicate with others at the same time, instead of just letting them stick with the computers and make â€Å"connection† to the â€Å"real† world. How to cite Technology is Killing Humanity, Essays

Brothers Karamazov Essay Example For Students

Brothers Karamazov Essay Dostoyevsky tries to show the importance of believing in God in the novel The Brothers Karamazov. Fyodor Dostoyevsky was raised in a very religious environment. Much of Dostoyevskys early learning was taught to him by his loving and devout Christian mother. His father was not as much a positive influence on him as his mother because he was a drunk. Dostoyevskys parental figures serve as the two ends of the spectrum of behavior. One parent is dedicated and pious, and the other is an irresponsible drunk. Although Dostoyevsky did lose his faith in the Church for a while, but his belief re-emerged after he spent some time in prison. In the Novel The Brothers Karamzov, Dostoyevesky has both characters that are righteous, and those that are not. The characters Alyosha and Father Zosima are examples of the Christian purists. Throughout the story these men serve as the conscience for those who are being troubled and are always around to spread Christian morals. On the contrary there are also those characters in the novel that have many flaws. Father Karamazov is a drunken womanizer who has lost much of his sons respect. One of his sons named Ivan is a total non-believer. Ivan is a philosophical person who inadvertently inspires Smernakov, to kill father Karamazov. At the end of the story we see Ivan turn to god for support at the trial of his brother Dmitri. Dmitri is found guilty of murder and is convicted. However, the whole mess could have been avoided had the Karamazov family been more focused on religion and love rather then quarreling over relatively minor ordeals. Dostoyevsky wrote this classic at a time when the influence of the Church in Russia was weakening and ideals of other societies were becoming more popular. This was of great concern to Dostoyevsky because he thought the new ideas would not bring any good to his country. He wrote the novel The Brothers Karamazov, which showed the two ways people can act and which road is the right one to take in life.