Complete the $K_{sp}$ expression for $\text{Cr(OH)}_3$. Include the units.
Calculate the solubility, in $\text{g dm}^{-3}$, of $\text{Cr(OH)}_3$ in pure water at $298\,\text{K}$. Show your working.
$\text{Cr(OH)}_3$ has a lower solubility in $0.100\,\text{mol dm}^{-3}$ NaOH than in pure water. Explain this observation.
Calculate the pH of $0.100\,\text{mol dm}^{-3}$ $\text{CH}_3\text{CH}_2\text{CH}_2\text{COOH}$ at $298\,\text{K}$. Show your working.
Calculate the pH of $0.100\,\text{mol dm}^{-3}$ NaOH at $298\,\text{K}$.
$5.00\,\text{cm}^3$ of $0.100\,\text{mol dm}^{-3}$ NaOH is added to $10.00\,\text{cm}^3$ of $0.100\,\text{mol dm}^{-3}$ $\text{CH}_3\text{CH}_2\text{CH}_2\text{COOH}$. Calculate the pH of the solution formed. Show your working.
An aqueous solution of volume $80.0\,\text{cm}^3$ containing $0.704\,\text{g}$ of $\text{CH}_3\text{CH}_2\text{CH}_2\text{COOH}$ is shaken with $100\,\text{cm}^3$ of benzene, $\text{C}_6\text{H}_6$. At equilibrium, $0.556\,\text{g}$ of $\text{CH}_3\text{CH}_2\text{CH}_2\text{COOH}$ is present in the $100\,\text{cm}^3$ of $\text{C}_6\text{H}_6$. Calculate the partition coefficient, $K_{pc}$, of $\text{CH}_3\text{CH}_2\text{CH}_2\text{COOH}$ between $\text{C}_6\text{H}_6$ and water. Show your working.