De-esterification for Synthesis of Benzoic Acid BATCH REACTOR Shane Bulk Chris Crosley David McGuire Max Skula Yunjing Song Shriram Sundarraj Nelson Zhou 155:416 Process Laboratory II Professor Jerry Sheinbeim January 28 – February 28‚ 2014 ABSTRACT The observed reaction that took place in this experiment was the de-esterification of ethyl benzoate to form benzoic acid. This experiment was used to determine the rate constant k of the synthesis of benzoic acid at different temperatures and
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The purpose of this experiment was to observe the hypothesized correlation between ionic strength and degree of ionization of a weak acid‚ while determining the factors that would impact the degree of ionization using measurements of pH. It was initially required to prepare standard 20-mL solutions of varying concentration of acetic acid for use in the rest of the experiment. One solution of CH3COOH was supposedly developed to be 2.00M‚ however it is highly possible that the solutions of CH3COOH
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Nucleic Acid Structure & Function Charlotte V. Bañes‚ MD Department of Biochemistry Introduction ORGANISM Store and preserve information Pass information to future generations Express information during life’s processes GENETIC INFORMATION Coded along a polymeric molecule (DNA) the chemical basis of heredity Organized into genes units of DNA that encodes a protein or DNA Central Dogma of Molecular Biology Gene Expression & DNA Replication “The genetic information
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Chemistry: Acid-Base Titration Purpose: The objective of this experiment were: a) to review the concept of simple acid-base reactions; b) to review the stoichiometric calculations involved in chemical reactions; c) to review the basic lab procedure of a titration and introduce the student to the concept of a primary standard and the process of standardization; d) to review the calculations involving chemical solutions; e) to help the student improve his/her lab technique. Theory: Titration was
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cream measured (fat) that the cows would produce (L. L. Van Slyke‚ 1906). The chemistry behind the Babcock test is that by using the sulphuric acid it will burn all liquid except for the fat. The sample is then added with deionised water then placed in the centrifuge determining the layer of fat (University Kentucky‚ College of Agriculture‚ 2013). Sulphuric acid is important in this method as when it is added this increases the process of the fat layer appearing
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Question In general‚ which is worse – acid or base conditions? Answers and Discussion Obviously a balance is required. The neutral pH is 7.0‚ however the natural pH of sea water is typically around 8.2 and that of fresh water is typically around 6.5. The answer to the question depends very much on whether or not we are discussing the environment or human health. Human Health: Our skin is slightly acidic (pH 5 to 5.5) and we can withstand low pH values quite readily. If we ingest or touch water which
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Separating Acids and Neutral Compounds by Solvent Extraction Introduction The purpose of this experiment was to use solvent extraction techniques in order to separate a mixture consisting of a carboxylic acid (p-toulic acid)‚ a phenol (p-tert-butylphenol)‚ and a neutral compound (acetanilide). Extraction is the process of selectively dissolving one or more of the compounds of a mixture into an appropriate solvent‚ the solution that contains these dissolved compounds is called an extract (Manion
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Also known as: ethanoic acid‚ Glacial acetic acid‚ Ethylic acid‚ Vinegar acid‚ Acetic acid‚ glacial‚ Methanecarboxylic acid‚ Acetasol‚ Essigsaeure Molecular Formula: C2H4O2 Molecular Weight: 60.05196 Acetic acid is a weak acid which is probably most famous for being the primary acid in vinegar. In fact‚ acetic acid has a wide range of uses beyond sprinkling on salads‚ and it is produced in large volumes all over the world. People have been working with this acid in a number of contexts for
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LAB REPORT 5 – ACID/BASE CHEMISTRY No credit will be given for this lab report if the Data section is not completely filled out and if the required photographs are not received. At least one photograph must show the student’s face. NOTE: This experiment is rather lengthy. Plan accordingly. OBJECTIVES 1. Define strong electrolyte‚ weak electrolyte‚ nonelectrolyte‚ acid‚ base‚ salt‚ strong acid‚ weak acid‚ strong base‚ weak base‚ and neutralization reaction. 2. Compare and contrast the chemical
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An Unknown Amino Acid From Titration Abstract Experiment 11 used a titration curve to determine the identity of an unknown amino acid. The initial pH of the solution was 1.96‚ and the pKa’s found experimentally were 2.0‚ 4.0‚ and 9.85. The accepted pKa values were found to be 2.10‚ 4.07‚ and 9.47. The molecular weight was calculated to be 176.3 while the accepted value was found to be 183.5. The identity of the unknown amino acid was established to be glutamic acid‚ hydrochloride. Introduction
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