How many mole of HCl will be required to prepare one litre of buffer solution…

CHEMISTRY · Subjective · AP · Chemistry · Acids and Bases · Acids and Bases

Problem

How many mole of HCl will be required to prepare one litre of buffer solution (containing NaCN + HCl) of pH 8.5 using 0.01 g formula mass of NaCN?

K_{\text{HCN}} = 4.1 \times 10^{-10}