Recrystallization Description of Technique/Process Recrystallization is the process of purifying solids based on their different solubilities. The steps involved in recrystallization are: a. Find a suitable solvent for the recrystallization; b. Dissolve the impure solid in a minimum volume of hot solvent; c. Remove any insoluble impurities by filtration; d. Slowly cool the hot solution to crystallize the desired compound from the solution; e. Filter the solution to isolate
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"A Beautiful Mind" lays out the story of mathematical genius John Forbes Nash Jr. as he enters Princeton and his lifelong struggles with his mental illness. He was so different compared to his colleagues. He doesn’t try to fit in with his fellow Princeton colleagues‚ and he understands he isn’t much liked. He is a loner and is not a social type of person. But one connection he made with was with his roommate‚ Charles. On the first part of the movie‚ it shows the mathematical life of John Nash
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PNGase F Procotol Reactions may be scaled-up linearly to accommodate larger amounts of glycoprotein and larger reaction volumes. Optimal incubation times may vary for particular substrates. Typical reaction conditions are as follows: Denaturing Reaction Conditions: 1. Combine 1-20 µg of glycoprotein‚ 1 µl of 10X Glycoprotein Denaturing Buffer and H2O (if necessary) to make a 10 µl total reaction volume. 2. Denature glycoprotein by heating reaction at 95°C for 5 minutes. 3. Chill denatured glycoprotein
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How is pH affecting catalase activity? Hypothesis The catalase activity is assumed to be the most active in pH7. The higher or lower concentration away from the optimum pH of catalase‚ the slower the rate of activity is. Data Collection & Processing I collected the results of pH4‚ pH7‚ pH10 and pH13 after 2 minutes‚ and I repeated the experiment 3 times. Below is a table to show the results‚ their averages and standard deviations: | 1st time (sec) | 2nd time (sec) | 3rd time (sec)
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NaCl Effects on Peroxidase Activity My experiment was to see if adding NaCl to solution would have any effects on peroxidase activity. The materials that were used in this experiment were pH 7 buffer(DI water)‚ peroxidase‚ NaCl‚ guaiacol and hydrogen peroxide; added in that order. Blanks were created for each NaCl concentration‚ 0%‚ 5%‚ 7.5% and 10%. Each cuvette had .5ml of pH 7 buffer‚ 1ml of peroxidase‚ .02ml guaiacol for the experimental cuvettes and 0ml of guaiacol for the blank cuvettes‚
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Vanden Eynden CHM2510 AU13 Practice Midterm Exam #2 CHM2510 Practice Midterm Exam #2 This exam is designed to give you a small glimpse as to the format of the exams I write. The content of the exam has no direct correlation to the difficulty of the actual exam you will take. Use this exam as another problem set so you can get a little more practice in where multiple chapters are combined into one document. It would greatly benefit you to try doing this exam first WITHOUT ANY NOTES
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EXTRACTION OF INVERTASE FROM YEAST AND EFFECT OF pH ON ENZYMATIC ACTIVITY Jenelle C. Faustino‚ John Gambit B. Garcia‚ Fatima S. Jusay‚ Oliver Alexander B. Lao and Eunice L. Licudine Group 4 2 E Medical Technology Biochemistry Laboratory ABSTRACT Enzymes are substances that are produced by living organisms and act as catalysts in order to speed up or chance a chemical reaction without changing itself at the end of the reaction. Invertase was extracted first from baker’s yeast. Determination
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Unit 3 GAME THEORY Lesson 27 Learning Objective: • • To learn to apply dominance in game theory. Generate solutions in functional areas of business and management. Hello students‚ In our last lecture you learned to solve zero sum games having mixed strategies. But... Did you observe one thing that it was applicable to only 2 x 2 payoff matrices? So let us implement it to other matrices using dominance and study the importance of DOMINANCE In a game‚ sometimes a strategy
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Did different conditions affect the Enzyme’s Efficiency? The hypothesis was “the more the imposed condition affects the mobility of the Enzyme‚ the fewer toothpicks will be broken”. This hypothesis proved true. This experiment manifested through multiple trials that the condition the enzyme had to endure definitely affected the Enzyme’s Efficiency. During this modeling experiment‚ it was observed that that the efficiency of the Enzyme over time created a line like that of a radical function
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Running head: THE DEMOGRAHICS OF CRYSTAL METHAMPHETAMINE 1 THE DEMOGRAHICS OF CRYSTAL METHAMPHETAMINE 11 The Demographics of Crystal Methamphetamine: Who Uses it‚ and Why? Student?s Name College The Demographics of Crystal Methamphetamine: Who Uses it‚ and Why? Crystal methamphetamine (meth) use evokes passionate discourses in popular culture‚ and in‚ official‚ scholarly‚ and clinical circles. A synthetic drug that has roots in the German amphetamine of the late nineteenth century; crystal
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