Tamil Nadu Board Solutions for Chapter: Ionic Equilibrium, Exercise 3: EVALUATION

Identify the Lewis acid and the Lewis base in the following reactions.

$\mathrm{CaO}+{\mathrm{CO}}_2\to {\mathrm{CaCO}}_3$

Identify the Lewis acid and the Lewis base in the following reactions.

${\mathrm{K}}_{\mathrm{sp}}$ of $\mathrm{AgCl}$ is $1.8 \times {10}^{-10}$. Calculate molar solubility in $1 \mathrm{M}$ ${\mathrm{AgNO}}_3$.

A particular saturated solution of silver chromate ${\mathrm{Ag}}_2{\mathrm{CrO}}_4$ has  $\left[{\mathrm{Ag}}^{+}\right]=5\times {10}^{-5} \mathrm{and} [{\mathrm{CrO}}_4{]}^{2-}=4.4\times {10}^{-4} \mathrm{M}$. What is the value of ${\mathrm{K}}_{\mathrm{sp}}$ for ${\mathrm{Ag}}_2{\mathrm{CrO}}_4$?

Write the expression for the solubility product of ${\mathrm{Hg}}_2{\mathrm{Cl}}_2 .$

${\mathrm{K}}_{\mathrm{sp}}$ of ${\mathrm{Ag}}_2{\mathrm{CrO}}_4$ is $1.1 \times {10}^{-12}$. What is solubility of ${\mathrm{Ag}}_2{\mathrm{CrO}}_4$ in $0.1\mathrm{M}$ ${\mathrm{K}}_2{\mathrm{CrO}}_4$?

Will a precipitate be formed when $0.150 \mathrm{L}$ of $0.1\mathrm{M}$ $\mathrm{Pb}({\mathrm{NO}}_3{)}_2$ and $0.100\mathrm{L}$ of $0.2 \mathrm{M}$ $\mathrm{NaCl}$ are mixed? ${\mathrm{K}}_{\mathrm{sp}} \left({\mathrm{PbCl}}_2\right)=1.2 \mathrm{x} {10}^{-5}$

${\mathrm{K}}_{\mathrm{sp}}$  of $\mathrm{Al}(\mathrm{OH}{)}_3 \mathrm{is} 1 \mathrm{x} {10}^{-15} \mathrm{M}$. At what $\mathrm{pH}$ does $1.0 \mathrm{x} {10}^{-3 }\mathrm{M} \hspace{0.17em}{\mathrm{Al}}^{3+}$ precipitate on the addition of buffer of ${\mathrm{NH}}_4\mathrm{Cl}$ and ${\mathrm{NH}}_4\mathrm{OH}$ solution?