Hydrolysis of tert-butyl Chloride in different solvents Practical conducted on 5 March‚ 2013 Reported by Pham Vu Hung on 10 March‚ 2013 Introduction: This practical is meant to measure the rate of reaction of the hydrolysis of tertiary-butyl chloride –a colorless‚ liquid organic compound at room temperature that is sparingly soluble in water - in water/acetone and water/isopropanol mixtures. Since there are many influencing factors for the rate of reaction‚ all are kept constant but the
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Lab #5: Refraction of Light Theory: Refraction can be defined as the bending of a wave when it enters a medium which causes it to have some reduced speed. In terms of light‚ refraction occurs when the ray passes through some medium which slows its speed; such as water or glass. In this instance the ray tends to bend towards the normal of the medium. The amount of bending or refraction which occurs can be calculated using Snell’s Law (). Objective: To measure the index of refraction of Lucite
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Carbohydrate Polymers 44 (2001) 319–324 www.elsevier.com/locate/carbpol Hydrolysis of diethyl diferulates by a tannase from Aspergillus oryzae ´ M.-T. Garcıa-Conesa a‚*‚ P. Østergaard b‚ S. Kauppinen b‚ G. Williamson a a Phytochemicals Team‚ Division of Diet‚ Health & Consumer Sciences‚ Institute of Food Research‚ Norwich Research Park‚ Colney‚ Norwich NR4 7UA‚ UK. b ´ Screening Biotechnology‚ Enzyme Research Novo Nordisk A/S‚ Novo Alle‚ bldg. 1BM1.05 DK-2880 Bagsvaerd‚ Denmark. Abstract
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CM1191 Experiment 5 Kinetic Studies on the Decomposition of Aspirin Aims To investigate the molar absorptivity of salicylic acid To determine the concentration of dissolved aspirin in heated water at various times To determine the effective rate constant of the decomposition of aspirin in heated water at 85°C. Results and Discussion The molar absorptivity of salicylic acid‚ ε‚ can be calculated from the equation‚ A = εcl. A more accurate value can be obtained by finding the gradient of a graph
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Isolation of Trimyristin from Nutmeg and preparation of Myristic Acid from Trimyristin by Hydrolysis Introduction Over 40% of medicinal chemicals in the world were developed from isolation of the natural source. These sources were from fungi‚ plants‚ bacteria‚ animals‚ etc. The techniques used to isolate and purify has been by extraction‚ distillation‚ recrystallization‚ and chromatography. In this experiment we will be trying to obtain a pure organic compound from a natural source. Because this
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Chemistry 12 lab 20-D Chemistry 12 Joanna Bragiel TA Solution | Colour of Uni. Indicator | pH | Type of hydrolysis | NaCH3COO | Blue- green | 9 | Anionic | NaCl | Green | 8 | Neither | (NH4)Cl | Green- yellow | 7 | Neither | (NH4)2SO4 | Green- Yellow | 7 | Neither | AlCl3 | Red-orange | 3 | Cationic | Ca(NO3)2 | Murky green | 7 | Neither | Fe2(SO4)3 | Red | 2.5 | Cationic | Na2CO3 | Dark blue | 9.5 | Anionic | Na3PO4 | Orange-red | 3 | Cationic | K2SO4 | Green | 7 | Neither
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Lab: investigating hooked law with springs Purpose: to find spring constants of different springs using the slope of a graph of change in heights vs. the weight force. Also‚ to be able to understand how spring constants change when you add springs in a series or paralle Pre lab predictions: We predicted that the graph of gravitational force (mg) as a function of stretch (delta x) would look like Data: Spring #1: y = 8.2941x + 0.0685 This table represents the different distances that
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STUDY OF THE OPTIMAL CONDITIONS FOR STARCH HYDROLYSIS THROUGH THERMOSTABLE α - AMYLASE T. Kolusheva‚ A. Marinova University of Chemical Technology and Metallurgy 8 Kl. Ohridski‚ 1756 Sofia‚ Bulgaria E-mail: e-mail: manahova@abv.bg. Received 10 July 2006 Accepted 12 November 2006 ABSTRACT The present work determines the optimal conditions for starch hydrolysis by thermostable α -amylase (EC 3.2.1.1) produced by Bac.subtilis strain XÊ-86. The hydrolysis reaction has the greatest rate at pH =
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Enzyme Activity Lab Hypothesis: 1] Are enzymes reusable? Yes‚ enzymes are reusable. 2] Which of the following do you think contain catalase? [Manganese dioxide‚ chicken meat‚ apple‚ carrot‚ potato‚ or chicken liver] I think that the manganese dioxide‚ apple‚ and carrot contain the catalase. 3] Would grinding the materials affect enzyme activity? I think that grinding the materials will increase enzyme activity. 4] Would temperature affect enzyme activity? I think that
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Microbiology-2460 Lab-003 March 31‚2008 Lab Report-Escherichia coli Abstract The purpose for this lab report was to identify and inform of an unknown bacteria that has been causing a patient to have lower abdominal and pelvic pain. To obtain the identification of this unknown bacterium‚ several biochemical tests needed to be performed in order to prescribe the correct medication to treat and cure the symptoms. Introduction In a lab today‚ I am to identify an unknown bacterium that is
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