Calculate the concentration of cn- and the ph for asolution, Ask an Expert

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Calculate the concentration of CN- and the pH for asolution that is made by mixing 50mL of 0.1 M HClO4 with4.2 mL of 0.438 M NaCN. Assume HClO4 to be a strongacid, NaCN to be a strong electrolyte (dissociates completely) and the pKa for HCN to be 9.21.

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