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16. To 250.0mL of a solution containing 0.250M HCN and 0.250M NaCN, 100.0mL of 0.100 M HCl is added. What is the pH of the

16. To 250.0mL of a solution containing 0.250M HCN and 0.250M NaCN, 100.0mL of 0.100 M HCl is added. What is the pH of the solution? Ka HCN = 4.9 x 10-10 tota volume = 350.0mL

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