Lab #5: Grignard Reaction – Synthesis of Triphenylmethanol John Kang Chem 152L Performed: 7/20/04 Date submitted: ________________ Lab Partners: Sang Lee‚ Vicky Lai TA: John Stanko Abstract: This experiment explored the synthesis of triphenylmethanol through the use of Grignard reagents. The percent yield of the product was 10% on a relatively humid day. The melting point was calculate to be 127.2oC with a literature value of 162oC. An IR spectrum of the product was taken and used
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------------------------------------------------- Griffith’s experiment Griffith’s experiment discovering the "transforming principle" in pneumococcus bacteria. Griffith’s experiment‚ reported in 1928 by Frederick Griffith‚[1] was one of the first experiments suggesting that bacteria are capable of transferring genetic information through a process known as transformation.[2][3] Griffith used two strains of pneumococcus (Streptococcus pneumoniae) bacteria which infect mice – a type III-S (smooth)
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Results of the Falklands War 1. Consequences for Argentina * As a result of the Argentinean defeat‚ Galtieri was removed from power within three days of the surrender. Soon after this the military rule was over. The army no longer had authority over the Argentinean government. In 1995 10 members of the Junta‚ including Galtieri‚ were put on trial for crimes committed during the rule of the junta – they were sentenced to long term imprisonment. * The government‚ under pressure from rising
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responses to conditions‚ events‚ occurrences‚ situations which try to deprive us of our balance in anyway. For example‚ when somebody senses danger whether real or imagined‚ the body mechanism of defences immediately kicks into action fight or flight reaction or the stress response. (Smith Et al: 2012). Although‚ stress is generally bad for the health‚ in few instances it helps people to perform under pressure and motivate people to do their best. Stress responses is the body’s defences mechanism. It
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Physics 1003 Experiment Report In this experiment‚ the technician began with the demonstration of solar energy. Solar energy is the conversion of light energy to electrical energy by using solar panels. Solar panels are devices that contained solar module which use light energy from light to generate electricity through the photovoltaic effect. And photovoltaic modules generate electricity from a frequency of light. From my observation of the experiment‚ I found that the panel is black in
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Abstract The Tuskegee syphilis experiment was an infamous clinical study conducted between 1932-1972 in Macon Country‚ Alabama by the U.S Public Health Service. The purpose was to study the natural progression of untreated syphilis in rural African American men who thought they were receiving free health care from the U.S government; about four hundred African American men were denied. The doctors that were involved in this study had a shifted mindset; they were called “racist monsters”; “for
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IRAC/CRAC What is it? • Issue‚ Rule‚ Analysis‚ Conclusion OR Conclusion‚ Rule‚ Analysis‚ Conclusion • Method for organizing legal analysis so that the reader can follow your argument • Especially helpful in writing exams (IRAC) and legal memos (CRAC). How to do it? As an example‚ we will look at whether someone can sue for battery as a result of inhaling second-hand smoke. The issue we will look at is whether there is contact‚ which is required for a battery claim. Issue
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Chemical Reactions What is a Chemical Reaction? Types of Chemical Reactions Redox Reactions Nonredox Reactions Classifying Reactions What is a Chemical Reaction? A chemical reaction is a process in which the identity of at least one substance changes. A chemical equation represents the total chemical change that occurs in a chemical reaction using symbols and chemical formulas for the substances involved. Reactants are the substances that are changed and products are the substances that are
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priming experiment were discussed‚ and the results were astonishing. One of the experiment was‚ students were asked to walk down a corridor to their professor’s office and take the “scrambled sentence test.” Throughout the test‚ words like “worried”‚ “Florida‚” “old‚” “lonely‚” “gray‚” “bingo‚” and “wrinkle” were involved‚ which was intended to prime the participants to fill old. As the participants left the office‚ the camera that recorded them coming in‚ recorded them leaving. The result in this
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The M’Naghten Rule: 1843 Aspects of the Criminal law in Canada are likely to be traced back several hundred years ago‚ where the legal system was established in England. Criminal law‚ derived from public law‚ includes the subject of criminal defenses‚ and in a narrower sense‚ the theory of not being criminally responsible on account of a mental disorder. The theory behind this defense can be traced back to England in the 1840’s. This era showcased the influential case of Daniel M’Nagthen
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