Embibe Experts Solutions for Chapter: Electrochemistry, Exercise 1: AP EAPCET Medical 2021 (6-Sep Forenoon)

Which among the following correctly represents the reducing strength of given species in aqueous medium?

If ${\mathrm{E}}_{\text{cell }}°$ of a cell represented by $\mathrm{Ni}/{\mathrm{Ni}}^{2+}(0.04\mathrm{M})\Vert {\mathrm{Ag}}^{+}(0.002\mathrm{M})/\mathrm{Ag}$ is $1.05 \mathrm{V},$ the ${\mathrm{E}}_{\text{cell }}$ in $\mathrm{V}$ is:

The emf of the Daniel cell $\mathrm{Zn}\left|{\mathrm{ZnSO}}_4(0.01 \mathrm{M})\Vert {\mathrm{CuSO}}_4(1 \mathrm{M})\right|\mathrm{Cu}$ at $298 \mathrm{K}$ is ${\mathrm{E}}_1.$ When concentration of ${\mathrm{ZnSO}}_4$ is changed to $1 \mathrm{M}$ and that of ${\mathrm{CuSO}}_4$ is changed to $0.01 \mathrm{M},$ the emf changed to ${\mathrm{E}}_2.$ Then find the relationship between ${\mathrm{E}}_1$ and ${\mathrm{E}}_2.$

The standard e.m.f of a Daniel cell is $1.15 \mathrm{V},$ Given $\mathrm{F}=96500\mathrm{C}.{\mathrm{mol}}^{-1},$ find the value of $\mathrm{\Delta G}$ for the following cell reaction. ${\mathrm{Zn}}_{\left(\mathrm{s}\right)}+{\mathrm{Cu}}_{\left(\mathrm{aq}\right)}^{2+}⟶{\mathrm{Zn}}_{\left(\mathrm{aq}\right)}^{2+}+{\mathrm{Cu}}_{\left(\mathrm{s}\right)}$

The potential of a hydrogen electrode which is immersed in a solution of $\mathrm{pH}=8$ is approximately _________

Calculate the number of Faraday $\left(\mathrm{F}\right)$ required to produce $121.525 \mathrm{g}$ of magnesium from molten ${\mathrm{MgF}}_2.$ Atomic mass of magnesium is given as $24.305 \mathrm{g}·{\mathrm{mol}}^{-1}.$

The electrical resistance of a column of $0.05\mathrm{MNaOH}$ solution of diameter $1 \mathrm{cm}$ and length $50 \mathrm{cm}$ is $6.5\times {10}^3\mathrm{ohm}.$ Its molar conductivity will be

The specific conductance of an aqueous ${\mathrm{KNO}}_3$ solution at $298 \mathrm{K},$ for a fixed concentration is $0.024 {\mathrm{ohm}}^{-1}{\mathrm{cm}}^{-1}.$ If the resistance of a cell containing this solution at $298 \mathrm{K}$ was found to be $85 \mathrm{ohm},$ then find its cell constant.