Chemistry

Chemistry

Problem

A laboratory procedure calls for a buffer at pH 6.8 using an acid whose pKapK_a is 6.3. What approximate ratio of conjugate base to conjugate acid is required? a) 0.32:10.32 : 1 b) 3.2:13.2 : 1 c) 1.6:11.6 : 1 d) 5.0:15.0 : 1

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