Embibe Experts Solutions for Chapter: Electrochemistry, Exercise 1: Exercise 1

If it is desired to construct the following voltaic cell to have ${\mathrm{E}}_{\mathrm{cell} }=0.084 \mathrm{V}$, what $\left[{\mathrm{Cl}}^{-}\right]$ must be present in the cathodic half cell to achieve the desired e.m.f. Given ${\mathrm{K}}_{\mathrm{SP}}$ of $\mathrm{AgCl}$ and $\mathrm{AgI}$ are $4\times {10}^{-10}$ and $1\times {10}^{-16}$ respectively?

$\mathrm{Ag}\left(\mathrm{s}\right)\mid {\mathrm{Ag}}^{+}[$Sat. $\mathrm{AgI}($ aq.$\left)\right]\Vert {\mathrm{Ag}}^{+}[$Sat. $\mathrm{AgCl},x\mathrm{MKCl}]\mid \mathrm{Ag}\left(\mathrm{s}\right)$

$2.303\mathrm{RT}/\mathrm{F}=0.06 \mathrm{V}; \log 2=0.3$

Hydrazine has been proposed as fuel in a fuel cell in which oxygen is oxidizing agent that converts hydrazine into nitrogen. If the cell is to produce $0.50 \mathrm{A}$ of constant current for $50$ hours, what is the minimum volume of oxygen must be used by fuel cell at $\mathrm{STP}$

By which of the following method deuteroperoxide can be prepared in laboratory?

Which of the following expression(s) represent the voltage of cell at $298 \mathrm{K}$?

$\mathrm{Ag}\left(\mathrm{s}\right)|\underset{\begin{array}{l}\left(1\right) \mathrm{saturated}\\ \mathrm{solution}\end{array}}{\mathrm{AgI}}\underset{\begin{array}{l}\left(2\right) \mathrm{saturated}\\ \mathrm{solution}\end{array}}{\left|\right|{\mathrm{Ag}}_2{\mathrm{C}}_2{\mathrm{O}}_4 |}\mathrm{Ag}\left(\mathrm{s}\right)$

The electrical resistance of a column of $0.05\mathrm{M} \mathrm{NaOH}$ solution of diameter $1 \mathrm{cm}$ and length $50 \mathrm{cm}$ is $5.55\times {10}^3\mathrm{ohm}$. Which of the following is/are correct for the above column?

Resistance of a conductivity cell filled with $0.1\mathrm{M} \mathrm{KCl}$ solution is $100\mathrm{ohm}$. If the resistance of the same cell when filled with $0.02\mathrm{M} \mathrm{KCl}$ solution is $520\mathrm{ohm}$. If the conductivity of $0.1\mathrm{M} \mathrm{KCl}$ solution is $1.29 \mathrm{S}/\mathrm{m}$. Which of the following is/are correct:

The electrical resistance of a column of $0.05 \mathrm{M} \mathrm{NaOH}$ solution of diameter $1 \mathrm{cm}$ and length $50 \mathrm{cm}$ is $5.55\times {10}^3\mathrm{ohm}$. Which of the following is/are correct for the above Column?

A saturated solution in $Ag\mathrm{A}\left({\mathrm{K}}_{\mathrm{sp}}=3\times {10}^{-14}\right)$ and $AgB\left({\mathrm{K}}_{\mathrm{sp}}=1\times {10}^{-14}\right)$ has conductivity of $375\times {10}^{-10}{\mathrm{Scm}}^{-1}$. Limiting molar conductivity of ${\mathrm{Ag}}^{+}$ and ${\mathrm{A}}^{-}$ are $60{\mathrm{Scm}}^2{ \mathrm{mol}}^{-1}$ and $80{\mathrm{Scm}}^2{ \mathrm{mol}}^{-1}$ respectively. If the limiting molar conductivity of ${\mathrm{B}}^{-}$ is $\mathrm{Y}($ in $\left.{\mathrm{Scm}}^2{ \mathrm{mol}}^{-1}\right).$ Find out the value of $\frac{\mathrm{Y}}{54}?$