7.58 The solubility of Sr(OH)2 at 298 K is 19.23 g/L of solution. Calculate the concentrations of strontium and hydroxyl ions and the pH of the solution.

Solubility of $\mathrm{Sr}{\left(\mathrm{OH}\right)}_{2}$ = 19.23 g/L

Then, the concentration of $\mathrm{Sr}{\left(\mathrm{OH}\right)}_{2}$