. The dissociation constant of a weak acid is
1×10-4. In order to prepare a buffer solution with a pH=5, the [ Salt ] / [ Acid ] ratio should be
(a) 4:5
(b) 10:1
(c) 5:4
(d) 1:10
Best Answer
Correct Option is (b)
Use formula pH = pKa + log Salt / Acid
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