4. Tris(hydroxymethyl)aminomethane [(HOCH2)3CNH2–Tris, or THAM] is a weak base frequently used to prepare buffers in biochemistry. Its Kb is 1.2 x 10-6 and pKp is 5.92. The corresponding pKa is 8.08, which is near the pH of the physiological buffers, and so it exhibits good buffering capacity at physiological pH. What weight of THAM must be taken with 100 mL of 0.50 M HCl to prepare 1 L of a pH 7.40 buffer?
4. Tris(hydroxymethyl)aminomethane [(HOCH2)3CNH2–Tris, or THAM] is a weak base frequently used to prepare buffers in biochemistry. Its Kb is 1.2 x 10-6 and pKp is 5.92. The corresponding pKa is 8.08, which is near the pH of the physiological buffers, and so it exhibits good buffering capacity at physiological pH. What weight of THAM must be taken with 100 mL of 0.50 M HCl to prepare 1 L of a pH 7.40 buffer?
Chapter8: Polyfunctional Acids And Bases
Section: Chapter Questions
Problem 3P
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