Chapter 15.10, Problem 1PPA

Practice ProblemATTEMPT

Aqueous hydrocyanic acid (HCN) ionizes according to the equation:

$\text{HCN}\left(aq\right)\rightleftarrows {\text{H}}^{\text{+}}\left(g\right)+{\text{CN}}^{\text{-}}\left(aq\right)$

At $\text{25°C,}{K}_c$ for this reaction is $4.9\times {10}^{-10}$. Determine the equilibrium concentrations of all species in a 0.100-M solution of aqueous HCN.