given-a-weak-acid-solution-with-a-pka-of-475-and-a-ratio-of-conjugate-base-to-co

Question

Given a weak acid solution with a pKa of 4.75 and a ratio of conjugate base to conjugate acid of 0.1, calculate the pH using the Henderson Hasselbalch equation.

Accepted Answer

pH = 4.75 + log(0.1) = 4.75 - 1 = 3.75

Answer

pH = 4.75 + log(0.1) = 4.75 - 0.1 = 4.65

Answer

pH = 4.75 + log(0.1) = 4.75 + 0.1 = 4.85

Answer

pH = 4.75 + log(0.1) = 4.75 + 1 = 5.75