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problem_set_1 - appropriate amount of acid or base to pure...

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BMB-401 (Spring 2004)– Introductory Biochemistry Problem Set 1 1. From your textbook (Lehninger) – Chap 4, problems 1, 2, 3, 5, 6, 9, 2. Draw the hydrogen bonding patterns that water can form with these two compounds. Play close attention to appropriate geometry. 2. Rationalize why the dielectric constant of the first compound in the following pairs of liquids is greater than the second. C H 3 C O NH 2 N formamide pyridine CHCl 3 Chloroform CCl 4 carbon tetrachlorid CH 3 OH Methanol CH 3 CH 2 OH Ethanol C O H 3 C CH 3 C H 3 C O NH 2 formamide acetone a b c

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3. Calculate the pH of the following solutions. All solutions were prepared by adding the
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Unformatted text preview: appropriate amount of acid or base to pure water. a) 0.1 M HCl b) 0.1 M NaOH c) 0.1 M CH 3 COOH d) 3 x 10-5 M HClO 4 e) 2 x 10 –8 M KOH 4. Calculate the formal concentrations of acetic acid and sodium acetate necessary to prepare a buffer solution of pH 5 that is 0.20 M in total acetate. 5. From the following information calculate the pH of the final solutions. Buffer Species Buffer Concentration Initial pH Amount of NaOH added Imidazole 0.10 M 6.70 0.02 M Imidazole 0.03 M 6.50 0.02 M Phosphate 1.00 M 6.35 0.10 M...
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problem_set_1 - appropriate amount of acid or base to pure...

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