What is \[[{{H}^{+}}]\] of a solution that is \[0.01\,M\] in \[HCN\]and \[0.02\,M\] in \[NaCN\] \[({{K}_{a}}\]for \[HCN=6.2\times {{10}^{-10}})\][MP PMT 2000]

What is \[[{{H}^{+}}]\] of a solution that is \[0.01\,M\] in \[HCN\]an

1.	What is \[[{{H}^{+}}]\] of a solution that is \[0.01\,M\] in \[HCN\]and \[0.02\,M\] in \[NaCN\] \[({{K}_{a}}\]for \[HCN=6.2\times {{10}^{-10}})\][MP PMT 2000]
A.	\[3.1\times {{10}^{10}}\]
B.	\[6.2\times {{10}^{5}}\]
C.	\[6.2\times {{10}^{-10}}\]
D.	\[3.1\times {{10}^{-10}}\]
Answer» E.