Problem: Calculate the pH of a buffer solution that is 0.251 M in HCN and 0.170 M in KCN. For HCN, Ka = 4.9×10−10 (pKa = 9.31).

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Calculate the pH of a buffer solution that is 0.251 M in HCN and 0.170 M in KCN. For HCN, Ka = 4.9×10−10 (pKa = 9.31).

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