What is the molar ratio of salt to acid required to prepare a sodium methanoate/methanoic acid buffer of pH 3.85? Ka of methanoic acid is 1.78 10^-4. Select one: A. 2:1 B. 2:3 C. 3:2 D. 5:4 E. 4:5
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Step 1: Use the Henderson-Hasselbalch equation: pH = pKa + log([A-]/[HA]) Show more…
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