MHT CET 2026 Chemistry question
Find the pH of a solution formed by mixing equal volume of solution of 0.1 M sodium propionate and 0.1 molar propionic acid. (Given The dissociation constant of propionic acid is 1.3 x 10)
Answer: (B)
Solution
The mixture of a weak acid and its sodium salt is an acidic buffer. Mixing equal volumes halves both concentrations equally, so . Henderson-Hasselbalch equation: pK_a\log$ = +
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