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    Calculations CALCULATION IN ORDER TO FIND THE PERCENTAGE OF VITAMIN C Chemical reaction: C6H8O6 + I2→ 2I + C6H6O6 Ascorbic Acid: C6H8O6 Relative formula mass of C6H8O6= (12.01076) + (1.007948) + (15.99946)= 176.12412 g/mol Convert Iodine lost from mL to dm-3 = Iodine lost in mL1000= Iodine lost in dm-3 Convert Iodine lost (dm-3) to moles (n) by multiplying it with the concentration of Iodine used: n=0.005 Iodine lost in dm-3= mol of C6H8O6 Find the mass (g) of C6H8O6 in 50 mL by using this

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    Cintya G. Alarcon Donna Biology 121 section WDF Lab Report # 1 1.On the graph paper in Figure 3‚ plot a graph of your experimental results. Choose an appropriate number scale for the Y-axis and label it Number of Infections. Choose an appropriate number scale for the X-axis label it Number of Exchanges. 2. In a few sentences‚ summarize the results of the experiment. In your summary‚ include data from your summary chart and graph. Statements of results should include only facts—no interpretation

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    Physics Name _______________________ Phet Solar System Simulation Lab Date ________ per _____ grp ____ Simulation open phet.colorado.edu ‚ play with sims ‚ Physics‚ Motion ‚ My solar System ‚ Run Now 1. Start What shape is the orbit of the planet ? ________________________________________________ Why does the “sun” wobble ? _____________________________________________________________ What is this principle called in Physics (Chap 6) ______________________________________________

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    catalyst free reaction by stirring reaction mixture of a and b in ethanol at room temperature. Additionally‚ several reactions were performed using various catalysts in different reaction conditions and results are summarized in Table 1. The catalyst free reaction fails to produce selective benzimidazole and conversion of reactants in long reaction time and obtained only 21 % conversion with 13 % selective yield of c after 48 h reaction time (Table I‚ Entry 1). Later on‚ the same reaction performed at

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    Link reaction The link reaction takes place in the mitochondrial matrix and its main function is to turn the pyruvate into acetate for the kerb cycle. During the link reaction the pyruvate molecule undergoes decarboxylation and dehydrogenation‚ the enzymes pyruvate decarboxylase and pyruvate dehydrogenase remove the carboxyl group (which becomes a carbon dioxide molecule) and removes the hydrogen atoms from the pyruvate molecule. The coenzyme NAD accepts the two hydrogen atoms and becomes reduced

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    Biology EEI Effect of Inorganic and Organic Fertilisers on Yield and Growth of Tomatoes By Yash Teacher: Mrs. Elphick TABLE OF CONTENTS Abstract................................................................................3 Introduction..........................................................................4 Materials and Methods.........................................................6 Contents of fertilisers...........................................................6 Procedure....

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    Lab Report Biology Essay

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    water with no chlorine. Clean an area of space you think is suitable‚ preferably lab tables. Take out 5 beakers. Take out an electric mass scale. Turn on electric mass scale (power button) and place a beaker on top of the scale. Make sure to only measure one beaker at a time. Wait till the digits on the screen slow down and stop at a number. The number it stopped at‚ that is the number you will right down in your lab book (that you will get out) as scrap notes. After you have measured each beaker

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    Brandon Schmetterer 3-13-15 Biology labs DNA Extraction Lab DNA is extracted from humans for genetic testing‚ for body identification‚ and for analysis of forensic evidence. The first step of DNA extraction is to take cheek cells from the test subject. Next‚ the cells must be burst open in order to release DNA. Third‚ DNA is separated from protein and debris. Lastly‚ the DNA must be isolated. A buccal swab is necessary in order to collect the cheek cells .The micropipettes are used to add lysis

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    Kinetics of a Reaction I. List of reagents & products 1. 1.0 M Copper(II) nitrate (Cu(NO3)2‚ 0.10 M Hydrochloric Acid (HCl)‚ 0.010 M Potassium Iodide (KI)‚ 0.040 M Potassium Bromate (KBrO3)‚ 0.0010 M Sodium Thiosulfate (N2S2O3)‚ 2% Starch solution‚ Water (H2O) II. Summary of Procedure. Part 1: Find the Volume of One Drop of Solution 2. Fill pipet with 3ml of distilled water 3. Mass a beaker and record 4. Put 5 drops of water into beaker and record

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    Chemical reactions are a part of everyday lives. Whether it is the burning of propane at a kitchen stove‚ or washing detergent reacting with dirt stains‚ chemical reactions are useful tools that have widespread applications. With so many reactions assisting our everyday activities‚ it is important that ways to optimise reaction rates are investigated. “Reaction rate‚ the speed at which a chemical reaction proceeds… may be defined in terms of the amounts of the reactants consumed or products formed

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