Results: Limiting Reactant: Eq 1 Limiting reactant = Benzoin Theoretical yield of Benzil: Eq 2 Theoretical Yield Benzil | 0.296 g | Mass of Crude Benzil | 0.188 g | Mass of Final Benzil | 0.127 g | % Yield | 43% | % Recovery | 66% | Table 1: Mass of crude/final Benzil‚ % yield‚ and % recovery Percent Yield: % Yield = (Final product/Theoretical product) x 100 Eq 3 = (0.127 g/0.296 g) x 100 = 43% yield Percent Recovery
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The immobilized enzyme was then tested via spectrophotometric assay at 510nm for kinematic activity and stability relative to its free enzyme counterpart. The enzymatic reaction was induced and analyzed via the addition of hydrogen peroxide (H2O2)‚ phenol‚ and 4-aminoantipyrine. To test stability a spectrophotometric assay (again at 510 nm) was conducted after both immobilized and free enzymes were heated at 70˚C for four minutes. The results of the immobilized enzyme yielded a significant stability
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Paracetamol - a curriculum resource Frank Ellis RSeC ROYAL SOCIETY OF CHEMISTRY Paracetamol - a curriculum resource Compiled by Frank E llis Edited by Colin Osborne and Maria Pack Designed by lmogen Bertin Published by the Royal Society of Chemistry Printed by the Royal Society of Chemistry Copyright 0 Royal Society of Chemistry 2002 Registered charity No. 207890 Apart from any fair dealing for the purposes of research or private study‚ or criticism or review‚ as permitted under
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The effect of unhealthy lifestyle In our research‚ we are seeking the effect of unhealthy lifestyle among the UTM students. There are many effects of unhealthy lifestyle that we are going to research like are unhealthy lifestyle related to fall sick frequently‚ sleep deprivation‚ difficult to focus during lecture‚ emotional‚ defective memory‚ weight issue and hormone imbalance. One of the factors of unhealthy lifestyle from our research is improper eating habit like uncontrolled eating habit and
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UNITED ARAB EMIRATES UNIVERSITY FACULTY OF SCIENCE DEPARTMENT OF CHEMISTRY GUIDELINES FOR ORGANIC CHEMISTRY NON-MAJORS CHEM 181 By Dr. Haythem Ali Saadeh Fall‚ 2012 Course Title: ORGANIC CHEMISTRY for Non-Majors Course Number: CHEM 181 Prerequisite: General Chemistry Credit Hours: 2 Cr. Hrs. (comprises of 2 hrs. lecture per week) Course Instructor: Dr. Haythem Ali Saadeh h.saadeh@uaeu.ac.ae Textbook: “Organic Chemistry: A Short Course” By
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product was then distilled using a Hickman still and characterized using infrared spectroscopy. The percent yield of isopentyl acetate was 61.52%. This may have been low due to not all of the condensed product being removed from the Hickman still‚ some product being lost during transfer of the product from the reaction tube into the Hickman still‚ or the loss of some product due to evaporation during distillation. Infrared spectrum analysis of the product indicated that the product was isopentyl
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fluid containing large amount of mucin is contributed by the mucosal cells of the colon. • There are normal intestinal microorganisms which disintegrate the organic residues into simpler fragments. • Some products are: • Amines and phenols (potentially harmful) • Vitamins (beneficial) • Stercobilinogen (innocuous) • The products are produced through metabolic activity of the bacteria‚ involving such processes as oxidation‚ reduction‚ hydrolysis‚ deamination and decarboxylation
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whether or not fermentation had occurred in the Phenol Red Broth. The first part of this test was for glucose fermentation with my results being +‚ which represented acid fermentation based on the yellow broth‚ and G‚ which represented gas end-products in the tube. The second part of the test was for lactose fermentation with my results coming back -‚ indicating that no fermentation occurred as a result of the red broth. The final part of the Phenol Red Broth tested for sucrose fermentation and my
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Aspirin Synthesis Introduction Out of all the pharmaceutical drugs in the worlds‚ aspirin is made the most. Any potential pharmacist must be familiar with synthesizing the drug. The goal of this lab is to synthesize as much pure aspirin as possible. The reactants‚ acetyl anhydride and salicylic acid‚ must react in phosphoric acid. With phosphoric acid as a catalyst‚ the reaction yields aspirin and acetic acid. The equation for the reaction is as follows: “(CH3CO)2O + HOC6H4COOH □(→┴yields ) CH3CO2C6H4CO2H
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1. Energy transfer by heating * Infrared Radiation * Surfaces and Radiation * States of matter * Conduction * Convection * Evaporation and condensation * Energy Transfer by design * Specific heat capacity * Heating and insulation buildings 2. Using Energy * Forms of energy * Conservation of energy * Useful energy * Energy and efficiency 3. Electrical Energy * Electrical Appliances * Electrical Power * Using electrical energy
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