) A buffer solution is made by mixing 27.0 mL of 0.14 M HCN with 33.0 mL of 0.095 M NaCN. Calculate the pH of the solution. Determine the change in pH of this solution if 12.0 g of NaCN were added t

) A buffer solution is made by mixing 27.0 mL of 0.14 M HCN with 33.0 mL of 0.095 M NaCN.  Calculate the pH of the solution.  Determine the change in pH of this solution if 12.0 g of NaCN were added to the resulting solution (Assume no volume change when the salt dissolves).