Embibe Experts Solutions for Chapter: Electrochemistry, Exercise 3: Level 3

The specific conductivity of a saturated solution of $\mathrm{AgCl}$ is $3.40\times {10}^{-6} {\mathrm{ohm}}^{-1} {\mathrm{cm}}^{-1}$ at $25°\mathrm{C}$. If ${\mathrm{\lambda }}_{{\mathrm{Ag}}^{+}}=62.3 {\mathrm{ohm}}^{-1} {\mathrm{cm}}^2 {\mathrm{mol}}^{-1} \& {\mathrm{\lambda }}_{{\mathrm{Cl}}^{-}}=67.7 {\mathrm{ohm}}^{-1} {\mathrm{cm}}^2 {\mathrm{mol}}^{-1}$, the solubility of $\mathrm{AgCl}$ at $25°\mathrm{C}$ is:

The conductivity of a saturated solution of ${\mathrm{BaSO}}_4$ is $3.06\times {10}^{-6} {\mathrm{ohm}}^{-1} {\mathrm{cm}}^{-1}$ and its equivalent conductance is $1.53 {\mathrm{ohm}}^{-1} {\mathrm{cm}}^2 {\mathrm{equiv}}^{-1}$. The ${\mathrm{K}}_{\mathrm{sp}}$ for ${\mathrm{BaSO}}_4$ will be:

The cell potential of an electrochemical cell with the cell reaction $\mathrm{Zn}+2{\mathrm{Ag}}^{+}\left(0.0001 \mathrm{M}\right)⟶{\mathrm{Zn}}^{2+}\left(0.1 \mathrm{M}\right)+2\mathrm{Ag}$, is:

Given that the standard cell potential is $1.56 \mathrm{V}$.

If, $\mathrm{E}{°}_{{\mathrm{Fe}}^{2+}/\mathrm{Fe}}=-0.440 \mathrm{V}$ and $\mathrm{E}{°}_{{\mathrm{Fe}}^{3+}/{\mathrm{Fe}}^{2+}}=0.770 \mathrm{V}$, then $\mathrm{E}{°}_{{\mathrm{Fe}}^{3+}/\mathrm{Fe}}$ is:

Among the following, the plot that correctly represents the conductometric titration of $0.05 \mathrm{M} {\mathrm{H}}_2{\mathrm{SO}}_4$ with $0.1 \mathrm{M} {\mathrm{NH}}_4\mathrm{OH}$ is

The density and equivalent weight of a metal are $10.5 \mathrm{g} {\mathrm{cm}}^{-3}$ and $100$, respectively. The time required for a current of $3 \mathrm{amp}$ to deposit a $0.005 \mathrm{mm}$ thick layer of the same metal on an area of $80 {\mathrm{cm}}^2$ is closest to

The molar conductivities of $\mathrm{HCl}, \mathrm{NaCl}, {\mathrm{CH}}_3\mathrm{COOH}$, and ${\mathrm{CH}}_3\mathrm{COONa}$ at infinite dilution follow the order:

The solubility product of silver iodide is $8.3\times {10}^{-17}$ and the standard reduction potential of $\mathrm{Ag}, {\mathrm{Ag}}^{+}$ electrode is $+0.8 \mathrm{volts}$ at $25 °\mathrm{C}$. The standard reduction potential of $\mathrm{Ag},\mathrm{AgI}|{\mathrm{I}}^{-}$ electrode from these data is: