Question:
A chemistry graduate student is given 100. mL of a 0.10
Last updated: 7/31/2022
A chemistry graduate student is given 100. mL of a 0.10 M hydrocyanic acid (HCN) solution. Hydrocyanic acid is a weak acid with K-4.9 x 10¹0. What mass of NaCN should the student dissolve in the HCN solution to turn it into a buffer with pH = 8.96? You may assume that the volume of the solution doesn't change when the NaCN is dissolved in it. Be sure your answer has a unit symbol, and round it to 2 significant digits.