Author Question: Consider a solution of 2.0 M HCN and 1.0 M NaCN (Ka for HCN = 6.2 1010). Which of the following ... (Read 40 times)

Brittanyd9008 · **on:** Mar 21, 2021

Consider a solution of 2.0 M HCN and 1.0 M NaCN (K_a for HCN = 6.2 × 10^–10). Which of the following statements is true?

◦ The solution is not a buffer because [HCN] is not equal to [CN^–].
◦ The pH will be below 7.00 because the concentration of the acid is greater than that of the base.
◦ [OH^–] > [H⁺]
◦ The buffer will be more resistant to pH changes from addition of strong acid than of strong base.
◦ All of these are false.

nyrave · **Reply #1 on:** Mar 21, 2021

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