liquid ingredients and one for dry ingredients. Also‚ we used measuring cups‚ spatulas‚ measuring spoons‚ whisk‚ electric mixer machine. The ingredients we used were all-purpose flour‚ sugar‚ tablespoon vanilla‚ half vegetable oil and half margarine‚ egg‚ little bit salt‚ baking powder. Next‚ we combined sugar and butter in a bowl‚ and we mixed the ingredients with a hand whisk until there were no lumps. Added vanilla‚ and eggs‚ and we stirred thoroughly. Then we prepared the dry ingredients
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20 9. Classic chemistry experiments Unsaturation in fats and oils Topic Organic chemistry‚ saturated and unsaturated fats. Timing 45 min. Description The students titrate different oils and fats mixed with Volasil against bromine water. Apparatus and equipment (per group) w White tile w Conical flask w Dropper pipette. (Use the type of teat pipette usually fitted to Universal Indicator bottles‚ that do not allow squirting – eg Griffin.) w Burette (filled with bromine
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Why are proteins important? Proteins can easily be addressed as one of the most important molecules in animal cells. There are many varieties of protein molecules which allow a vast range of biological activities in the cell.( Williams‚ G.(2000))’Proteins are big compound with large molecular masses’’(Williams‚ G.(2000)) whose main chemical constituents are hydrogen‚ carbon ‚oxygen and nitrogen. A protein structure consists of a specific sequence of amino acids called the
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[pic] Department of Chemical & Biomolecular Engineering THE NATIONAL UNIVERSITY Of SINGAPORE Chemical Engineering Process Laboratory I SEMESTER 4 Experiment F2 Flow Measurement in Closed Conduit and Centrifugal Pump Characteristics Name : Ang Sok Gek Chai Chang Er Cherry Chen Mingli Matriculation No. : U046941L U046938W U046882J Group : Th1 Date of Experiment : 16th March 2006 Table of Contents
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I chose a simple procedure that can be carried out using materials that are easily found in the home. The exception is Toluidine blue which however can be bought in shops that sell materials for chemical and biological laboratories. Almost all microscopists have this dye or another nuclear colorant. Colouration of the mitotic spindle would also be useful to more fully illustrate the phenomenon of cellular duplication. However‚ another colorant would be necessary
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glucose and starch solution stays within the beaker of water for a longer period of time‚ then more water will travel through the selectively permeable membrane due to the effects of diffusion on the solution. If the level of sucrose within the solution increases‚ then the effects of osmosis will cause the change in mass to also increase due to higher concentrations of sucrose and the increased net movement of the water molecules within the solution. Analysis - When the glucose and starch solution
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The Kinetics of α-Chymotrypsin Introduction Chymotrypsin is a protease which cleaves proteins by a hydrolysis reaction‚ it does this by adding a molecule of water to a peptide bond. Although the hydrolysis reaction is thermodynamically favoured in the absence of a catalyst the half-life for a typical hydrolysis reaction by a protease is between 10 and 100 years‚ needless to say it is extremely slow1. Though this is true peptide bonds are hydrolysed within milliseconds in the body in the presence
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Enzyme lab report. Introduction. An enzyme is a protein molecule that speeds up the rates of chemical reactions by many folds. They recognize‚ bind‚ and change specific reactants. They do not change thus can catalyze the same reaction again and again. Activation energy also known as an energy barrier is the amount of energy needed in order to begin a chemical reaction. Catecholase catalyzes the reaction rate of catechol oxidation. Catechol is found beneath the skin of many plants such
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Introduction The aims of the lab session was to familiarize with the principles‚ operation and application of a light spectrophotometer. This report discusses an experiment to study the relationship of absorbance and concentration‚ the interaction of electromagnetic radiant energy(ERE) and matter which is an important aspect of the Beer-Lambert ’s Law. This law states that the absorption of a compound is directly proportional to the concentration of that particular compound. This is because (a &
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BIOL 1208 Lab Report Cover Sheet I certify that the writing in this assignment is my individual work and is my sole intellectual property. It does not contain the ideas or writing of other individuals/authors. _Alexandra DeWitt_____________ __5/1/13____________ Author Date _10_________ Lab Section # Increasing Sucrose Concentrations Causes the Osmotic Concentrations of Disks of Potato Tubers to Decrease Abstract: Introduction: The biological membranes are composed of phospholipid
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