Embibe Experts Solutions for Exercise 2: Assignment

When aqueous solution of $\mathrm{KBr}$ is electrolysed using $\mathrm{Pt}$ electrodes, the resultant solution will have

Function of salt bridge is/are

a. It completes the cell circuit

b. It allows the movement of ions from one solution to other without mixing of the two solutions

c. It maintains the electrical neutrality of the solution in two half cells

The conductance of $0.01 {\mathrm{NCH}}_3\mathrm{COOH}$ solution is $4.5\times {10}^{-4} {\mathrm{ohm}}^{-1}$ which is present in a tube having length $6 \mathrm{cm}$ and cross sectional area $36{ \mathrm{cm}}^2$. The molar conductivity of the solution is

If $\frac{{\mathrm{Zn}}^{2+}}{\mathrm{Zn}}$ electrode is diluted $1000$ times, then the change in electrode potential is

What will be the emf of the cell in which the following reaction takes place at $298 \mathrm{K}?$

$\mathrm{Mn}\left(\mathrm{s}\right)+\underset{0.01\mathrm{M}}{{\mathrm{Cu}}^{2+}}\left(\mathrm{aq}\right)⟶\underset{0.0001\mathrm{M}}{{\mathrm{Mn}}^{2+}}\left(\mathrm{aq}\right)+\mathrm{Cu}\left(\mathrm{s}\right)$

(Given: ${\mathrm{E}}_{\mathrm{cell}}^0=1.52 \mathrm{V}$)

The electrode potential of hydrogen electrode is when ${\mathrm{H}}_3{\mathrm{O}}^{+}$ ion concentration is ${10}^{-5}\mathrm{M}$ $\left({\mathrm{pH}}_2=1 \mathrm{atm}\right)$

Cell constant is maximum in case of

The molar conductivity of an infinitely diluted solution of ${\mathrm{NH}}_4\mathrm{Cl}$ is $150 \mathrm{S}{ \mathrm{cm}}^2{ \mathrm{mol}}^{-1}$ and the ionic conductances of ${\mathrm{OH}}^{-}$ and ${\mathrm{Cl}}^{-}$ ions are $198 \mathrm{S}{ \mathrm{cm}}^2 {\mathrm{mol}}^{-1}$  and $76 \mathrm{S}{ \mathrm{cm}}^2{ \mathrm{mol}}^{-1}$ respectively. The molar conductivity $\left({\mathrm{Scm}}^2{ \mathrm{mol}}^{-1}\right)$ of the solution of ${\mathrm{NH}}_4\mathrm{OH}$ at infinite dilution is