can break down lipid into glycerol or fatty acids in milk. Since enzyme is made up of protein which easily affected by varies temperature. This experiment is carried out to find the effects of temperature on the activity of lipase by adding phenolphthalein and observes how long it takes to decolorize from pink‚ because milk is slightly alkaline that change to pink after adding phenolphthalein. In order to enhancing the result and the colour‚ adding sodium carbonate is needed. Principle: The recommend
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The purpose of this lab was to observe osmosis in the Gummy Bears and to investigate the movement of water in and out of a Gummy Bear. The hypothesis stated that the salt will make the gummy bear weigh more‚ but it will keep the gummy bear more intact. However‚ the results showed that the gummy bear decreased in mass because of the salt and water. This contradicts the hypothesis because of how it was believed that the gummy bear would increase in weight‚ but it did the exact opposite. One part of
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Each group (I was with William Yung for this experiment) was tasked with testing one homogenate. The homogenate tested by our group was liquid spinach. Each team added HCl and NaOH to their homogenate. As we found out in our experiment‚ HCl was an acid so when added to the liquid spinach the pH lowered and NaOH‚ being a base‚ rose the pH level when added. The better the buffer the homogenate is‚ the less its pH changes
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CHM151LL Laboratory Report Form Fall 2011 Title: Project 5: SPECTROPHOTOMETRIC ANALYSIS OF A PENNY Date Run: 04/03/2012 Date Submitted: 04/15/2012 Grade: _____________________ Objectives: The purpose of this experiment is to use spectrophotometry to determine the percentage of copper in a copper-clad penny‚ and to determine the thickness of copper layer on the copper-clad penny. Introduction: In the spectrophotometric analysis of a penny lab‚ we will be conducting three
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Solubility of Calcium Hydroxide Apparatus * Solid calcium hydroxide * 0.4 mol/dm hydrochloric acid * Distilled water * Pipette * Triple valve rubber pipette filler * Conical flask * Beaker * White tile * Clamp and stand * Methyl orange indicator Producing the calcium hydroxide solution 1. Roughly fill a beaker with 200cm³ of distilled water. This does not need to be accurate because samples will be taken from this. 2. Add solid calcium hydroxide‚ a spatula at a
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Synergetic Solutions Report This paper will discuss the internal and external forces of change for Synergetic Solutions. The report will show the factors that the leader in this organization needs to consider to implement a change strategy successfully and it will describe at least two change models the leader might employ. And we will evaluate the communication necessary to implement change using these models. The paper will show what kinds of resistance might the leader expect to see in Synergetic
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chemistry lab report : reaction of alcohol CHEMISTRY LAB REPORT SK026 SEMESTER 2 SESSION 2011/2012 TITLE :REACTION OF ALCOHOL DATE : NAME : MATRIC NO : PARTNER : PRACTICUM : SUPERVISOR : Title : Reaction Of Alcohol Objectives : 1. To classify alcohol 2. To study the chemical properties of alcohols Introduction: Alcohol is a class of organic compound containing hydroxyl group‚ OH as the
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identify An Unknown The hypothesis tested was that depending on the solution presented‚ which would test positive for one of the following‚ proteins‚ carbohydrates‚ or lipids through use of chemical testing. (Sudan IV‚ Benedicts’ Solution‚ Iodine‚ Biuret’s) . In order to gain more information for the hypothesis‚ one must know how to test for said macromolecule. Each of the above stated molecules has their own individual solution that will in turn identify which molecule is present. The corresponding
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Making Molar Solutions and Dilutions Objectives: After performing this lab‚ the student should be able to: • Calculate grams of solute and correctly prepare a molar solution. • Prepare parallel and serial dilutions using C1V1 = C2V2 • Distinguish a parallel dilution from a serial dilution. • Determine whether a parallel or serial dilution should be used in a given situation. • Use a microcentrifuge to make a pellet. Making Molar Solutions and Dilutions A major job of any biotechnician
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amino acids) Xanthoproteic Test Conc. HNO3‚ conc. NaOH For W‚F‚Y (aromatic except for H) Blue to blue-violet Oxidative decarboxylation color & deamination followed by (proline:hydroxypr condensation oline gives a yellow color) Yellow sol’n/ppt. Nitration via SEAr with conc. HNO3‚ orange with excess NaOH Millon’s rgt.(Hg2+ & Hg22+nitrates& nitriles/Hg(NO3)2 in conc. HNO3‚ w/ trace of HNO2/HgSO4‚H2SO4 ‚NaNO2) Hopkins-Cole Test Glyoxylic acid (Mg powder‚ oxalic acid
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