Osmosis Trial experiment Aim: Our aim in this experiment is to find out which vegetable absorbs the most liquid over a given time due to osmosis. Chosen Apparatus: we will need to use: six test tubes; a test tube rack; an apple; a potato; a cork borer; a measuring cylinder; sugar solution; scales to measure in milligrams; a ruler; a knife; and a pair of tweezers. Apparatus Why we chose it Advantages Alternative equipment apple Its an absorbent fruit and is similar to a potato It
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Experiment 10 - Flow Characteristics of Valves NAME: CHER SUNG KANG GROUP NUMBER: B21 EXPERIMENT NUMBER: 10 DATE OF EXPERIMENT: 28/11/2011 DATE OF REPORT SUBMISSION: 5/11/2011 MARK/20 (for demonstrator use): Introduction Aim: 1. Describe operation of various types of valves 2. Measure frictional losses due to flows through different valves 3. Identify sources of errors Background & theory: In this experiment‚ the relationship between volumetric flow rate and percentages
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Several 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
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Physical Chemistry CHM2330 Experiment F- Raoult ’s Law Experiment By: Sanah Assaad Student Number: 5267864 Partner: Jihad Arafa T.A: Didier University of Ottawa March 25‚ 2010 Objective: The purpose of this experiment is to study the total vapour pressure of ideal or non-ideal mixtures of two volatile liquids as a function of chemical composition. Introduction: For ideal mixtures of volatile liquids the vapour pressure of any given mixture may be obtained by applying Raoult
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2.6 Kinetic studies of prepared complexes The integral method of Coats–Redfern equation[19‚21‚27‚38] was used for determining the kinetic parameters of the decompositions process for the investigated metal complexes according to following equation: log[log(w_∞/(w_∞-w))⁄T^2 ]〖=log[AR/〖∅E〗^* (1-2RT⁄E^≠ )]〗-E^≠/2.303R 1/T (4) Where w_∞ is the mass loss at the accomplishment of the decomposition reaction‚ w is the mass loss at temperature T‚ ∅ is the rate of heating and R is
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Lab Report Effect of temperature on enzyme activity I. Purpose: Determine how effect of temperature on enzyme (catalyse) activity (in the liver). II. Materials * Raw liver * Forceps * 50mL 1% hydrogen Peroxide (H * 25mL graduated cylinder * 50mL‚ 400mL beakers * Pureed liver * 5 Filter-paper disks * Paper towels * Timer or stopwatch * Thermometer * Hot plate III. Procedure 1.Gather all necessary materials; start
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INTRODUCTION OF ENZYMES Enzymes are complex proteins that cause a specific chemical change in all parts of the body (David C. Dugdale‚ 2011). When we understand enzymes we understand cells (Marshall Brian‚ 2001). In many organisms most chemical reactions are catalyzed -when a substance speeds up the rate of a chemical reaction- by enzymes. Each enzyme controls a certain function that happens in a cell. Still each one has its own process and rate that it converts molecules. Studying enzymes shows how chemical
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Lux G experiment is performed at the University of California San Diego on May 21st until June 4th of 2018 by Gloria Karem. This experiment is based on the purification of LuxG by using multiple purification and lysing methods: Brad Ford Assay‚ SDS-PAGE‚ affinity purification‚ lysozyme treatment‚ nickel column‚ sonication‚ and flavin reeducate activity assay. His-tagged protein is expressed in E. coli from pGhis‚ with the T7 RNA lac repressor induction system.5 Sonication is used‚ it’s why bacteria
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Jews‚ experiments on them‚ and looting of their gold and property at the same time.
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Experiment 10 – Enzymes Enzymes are proteins that act as catalysts for biological reactions. Enzymes‚ like all catalysts‚ speed up reactions without being used up themselves. They do this by lowering the activation energy of a reaction. All biochemical reactions are catalyzed by enzymes. Since enzymes are proteins‚ they can be denatured in a variety of ways‚ so they are most active under mild conditions. Most enzymes have optimum activity at a neutral pH and at body temperature. Enzymes are
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