Question

Calculate the {{H}^{+}}
ion concentration in a 1.00\,\,(M)
\,HCN\,
litre solution ({{K}_{a}}=4\times {{10}^{-10}})
[Bihar CEE 1995]
A) 4\times {{10}^{-14}}\,mole/litre B) 2\times {{10}^{-5}}\,mole/litre C) 2.5\times {{10}^{-5}}\,mole/litre D) None of these

Answer 1

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