The solubility of $BaSO_4$ in pure water is $10^{-5} \ M$ at $298 \ K$. The solubility of $BaSO_4$ in $0.1 \ M \ K_2SO_4$ (aq.) solution is: (Molar mass of $BaSO_4 = 233 \ g \ mol^{-1}$)

When $H_2S$ gas is passed into a certain solution,it reacts to form a white precipitate. The solution referred to contains ions of

The following equilibrium exists in aqueous solution: $CH_3COOH \rightleftharpoons CH_3COO^{-} + H^{+}$. If dilute $HCl$ is added without a change in temperature,then the:

Write about the common ion effect.

We have taken a saturated solution of $AgBr$. The $K_{sp}$ of $AgBr$ is $12 \times 10^{-14}$. If $10^{-7} \ mol$ of $AgNO_3$ are added to $1 \ L$ of this solution,find the conductivity (specific conductance) of this solution in terms of $10^{-7} \ S \ m^{-1}$ units.
Given: $\lambda^{\circ}_{(Ag^{+})} = 6 \times 10^{-3} \ S \ m^2 \ mol^{-1}$,$\lambda^{\circ}_{(Br^{-})} = 8 \times 10^{-3} \ S \ m^2 \ mol^{-1}$,$\lambda^{\circ}_{(NO_3^-)} = 7 \times 10^{-3} \ S \ m^2 \ mol^{-1}$.

Calculate the solubility of $AgCl(s)$ in $0.1 \ M \ NaCl$ at $25 \ ^oC$. Given ${K_{sp}}(AgCl) = 2.8 \times 10^{-10}$.