Question

calculate the equilibrium concentrations of the components based on a 0.20 m hcn solution at a certain temperature. what is the concentration of h+?

\\\text{hcn}(aq) \
ightleftharpoons \text{h}^+(aq) + \text{cn}^-(aq)\\
\\k = 4.9 \times 10^{-10}\\

\\\text{h}^+ = ? \times 10^{?} \text{ m}\\

Explanation:

Set up the equilibrium expression

Using the Chemical Equilibrium and Equilibrium Constant knowledge points

$$
LATEXBLOCK0
$$

Define equilibrium concentrations

Using the RICE Table Calculations knowledge point

$$
LATEXBLOCK1
$$

Solve for the hydronium concentration

Using the RICE Table Calculations knowledge point

$$
LATEXBLOCK2
$$

Answer:

Calculate the equilibrium concentrations of the components based on a 0.20 M HCN solution at a certain temperature. What is the concentration of H+?

\(HCN(aq)
ightleftharpoons H^+(aq) + CN^-(aq)\)
\(K = 4.9 \times 10^{-10}\)

\([H^+] =\) <blank>\(9.9\)</blank> \(\times 10^{\text{-6}}\) M