Safety Precautions for Synthesis of Acetic Anhydride Acetic Anhydride Acetic anhydride is an irritant and also flammable‚ therefore gloves and goggles should be worn at all times during the experiment. It is reactive to water‚ so in the case of fire‚ alcohol foam or carbon dioxide is preferred to use as an extinguisher. This chemical has harmful fumes and use of a fume hood is strongly recommended. Sulphuric and Salicylic Acid These acids may irritate the skin in high concentrations. Take
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of an object is determined using a process called titration. According to Petrucci et al.‚ titration is a reaction carried out by the carefully controlled addition of one solution to another. It has several types like acid-base titrations and redox titrations. This experiment focuses on the latter type‚ the redox titration. A redox titration is based on an oxidation-reduction reaction between analyte and titrant (Harris‚2009). It involves the transfer of electrons between the two solutions. This
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165mL acetic anhydride and a magnetic spin vane. An air condenser was attached to the vial and it was heated on an aluminum block‚ with a temperature maintained at 120C. After the solution dissolved‚ it was heated an extra 20 minutes to allow the reaction to go to completion then cooled back to room temperature. An ice bath was used to encourage crystal growth. The crystals were removed and centrifuged‚ then placed on a pre-weighed watch glass to dry and weigh. Percent recovery was found. A small
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comfort that someone else has gone through the same experiences you have‚ such as In Memoriam by Tennyson‚ or it could polarise readers and expose truths that both reader and poet didn’t expect to manifest. Poetry can also be used as a tool to gain reactions from the public in the hopes of inciting social
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Laboratory Exercise #3 Measuring Protein in Solution Abstract The purpose of this lab was to learn about the Biuret assay reaction to determine if it can detect proteins and amino acids; also‚ to understand the process of “salting out” proteins and how to determine the amount of protein in a solution. In order to do so‚ egg white and ammonium sulfate were mixed on ice and then put into the centrifuge. After PBS was added‚ the amount of protein could then be determined. After that‚ 14 test tubes
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Introduction What is chemical change? Chemical change is the alteration of a substance into one or more different substances with different properties (also called chemical reaction). The four different types of chemial reations are synthesis‚ decomposition‚ single displacement‚ and double displacement. Synthesis is when atoms and/or molecules combine to form larger molecules. Decomposition is when a large molecules are split into elements or smaller molecules. Single Displacement has an element
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1. How to differentiate “O” and a Bombay groups: 2. AHG Test: Wash with NSS 3X to remove globulins. Why? 3. Aside from serum‚ Anti A and anti B can also be found in_______ 4. Anti-Duffy antibodies can cause HDN and HTR‚ True or False? 5. Emergency cases patients transfused with 6. Intrauterine transfusion: blood unit of choice is: PRBC‚ Frozen RBC‚ anything will do 7. Aside from Whole blood and PRBC‚ what component is needed to be crossmatch prior to transfusion? 8. What
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USPS Synthesis Essay If I were the current CEO for the United States Postal Service‚ I would be gravely concerned about the future of my business‚ as it has recently taken a steep plummet from its success and popularity in the 19th and 20th centuries. The USPS is now faced with the decision to renovate itself due to the extreme loss of business as technology takes over the 21st Century. Some say that the USPS should be entirely reconstructed because the business is only headed further downhill
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Synthesis Paper Skateboarding means different things to different people. It’s a life style‚ an art form‚ a sport‚ a career‚ a hobby‚ a mode of transport‚ a kid’s pastime‚ a form of rebellion‚ a booming industry‚ a form of expression‚ family entertainment‚ a healthy form of exercise‚ a dangerous activity‚ and an addiction‚ but also a culture‚ an identity‚ an education‚ and even a religion to faithful follower s. But the dangerous part of skating stops many people from skateboarding. Injury also
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Joe Ross Reaction Paper Adult Development PSY6300 Instructor: Pamela Smilo PhD June 27‚ 2010 Reaction Paper Our textbook The Journey of Adulthood by Barbara R. Bjorklund and Helen L. Bee is the study of adult development‚ and it follows the tenets of developmental psychology‚ the field of study that deals with the behavior‚ thoughts and emotions of individuals as they go through various parts of the life span. The field also
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