Electrochemistry

In a conductometric titration, small volume of titrant of higher concentration is added stepwise to a larger volume of titrate of much lower concentration, and the conductance is measured after each addition. The…

An aqueous solution of X is added slowly to an aqueous solution of Y as shown in List I. The variation in conductivity of these reactions is given in List II. Match List I with List II and select the correct using…

$\mathrm{AgNO}_3(a q)$ was added to an aqueous $\mathrm{KCl}$ solution gradually and the conductivity of the solution was measured. The plot of conductance $(\Lambda)$ versus the volume of $\mathrm{AgNO}_3$ is

At $300$ K, the molar conductivities of the aqueous solutions of three salts at two different concentrations are given below: Salt Concentration (M) Molar conductivity (S cm$^2$ mol$^{-1}$) $\text{NaNO}_3$ $0.01$ $111$…

An aqueous solution of hydrazine $\left(\mathrm{N}_2 \mathrm{H}_4\right)$ is electrochemically oxidized by $\mathrm{O}_2$, thereby releasing chemical energy in the form of electrical energy. One of the products…

Plotting $1/\Lambda_{m}$ against $cΛ_{m}$ for aqueous solutions of a monobasic weak acid $(HX)$ resulted in a straight line with $y-$axis intercept of $P$ and slope of $S$. The ratio $P/S$ is $[\Lambda_{m}=molar…

Some standard electrode potentials at $298K$ are given below:$Pb^{2+}/Pb -0.13VNi^{2+}/Ni -0.24VCd^{2+}/Cd -0.40VFe^{2+}/Fe -0.44V$To a solution containing $0.001M$ of $X^{2+}$ and $0.1M$ of $Y^{2+}$, the metal rods $X$…

For the cell $\text{Zn} (s)|{\text{ZnSO} }_{4} (\text{aq})||{\text{CuSO} }_{4} (\text{aq})|\text{Cu} (s)$, when the concentration of ${\text{Zn} }^{2+}$ is $10$ times the concentration of ${\text{Cu} }^{2+}$, the…

For the following electrochemical cell at $289 K,$ $\text{Pt}(\text{s})|\text{H}_{2}(\text{g},1\text{bar})|\text{H}^{+}(\text{aq},1\text{M})||\text{M}^{4+}(\text{aq}.), M^{2+}(\text{aq}.)|\text{Pt}(\text{s})$…

In a galvanic cell, the salt bridge

The standard reduction potential data at $25^{\circ}C$ is given below. $E⁡^{ο}(\text{Fe}^{3+},\text{Fe}^{2+})=+0\cdot77V⁡; \\ E⁡^{ο}(Fe⁡^{2+},Fe⁡)=-0\cdot44V⁡ \\ E⁡^{ο}(Cu⁡^{2+},\text{Cu})=+0\cdot34V⁡; \\…

The electrochemical cell shown below is a concentration cell. $\mathrm{M} \mid \mathrm{M}^{2+}$ (saturated solution of a sparingly soluble salt, $\left.\mathrm{MX}_{2}\right) \| \mathrm{M}^{2 \perp}\left(0.001…