Calculate cell potential of following given cell at 298 K tempera… - Vidyadip

Question

Calculate cell potential of following given cell at 298 K temperature.
$\begin{array}{l} Mg _{( s )}\left| Mg ^{2+}{ }_{(0.001 M )} \| Cl _{(0.02 M )}^{-}\right| Cl _{2(B \mid ba )}\left| Pt _{( s )}\right| \\ E _{ Mg ^{2+ Mg }}^0=-2.36 V \\ E _{ Cl _2 / G =}^0=1.36 V\end{array}$

✓

Answer

⇒ $Mg ( s )\left| Mg ^{2+}(0.001 M ) \| Cu ^{2+}(0.0001 M )\right| Cu ( s )$
cell reaction $: Mg ( s )+ Cu ^{2+}( aq ) \rightarrow Mg ^{2+}( aq )+ Cu ( s )( n =2)$
$E _{\text {cell }}^0= E _{ Cu 2+\mid Cu }^0- E _{ Mg 2+\mid Mg }^0$
$=0.34-(-2.36)$
$=2.70 V$
$E _{\text {cell }}= E _{\text {cell }}^0-\frac{0.059}{ n } \log \frac{\left[ Mg ^{2+}\right]}{\left[ Cu ^{2+}\right]}$
$=2.70 \times \frac{0.059}{2} \log \frac{0.001}{0.0001}$
$=2.70-0.0295$
$E _{\text {cell }}=2.67 V$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "3 Marks Question" from JUNE 2024→JUNE 2024 — all question types→Chemistry STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

(a) Which is the salt of Mn which is isostructural to $KClO _4$ ?
(b) Explain the structure and magnetic properties of manganese and permanganate ions.

Give the structures of A and B in the following sequence of reactions:

$\text{CH}_3\text{COOH}\xrightarrow[\Delta]{\text{NH}_3\ \ \ }\text{A}\ \ \ \xrightarrow{\text{NaOBr}}\text{B}$
$\text{C}_6\text{H}_5\text{No}_2\xrightarrow{\text{Fe}/ \text{ HCl}}\text{A}\ \ \ \ \ \xrightarrow[0^\circ-5^\circ\text{C}]{\text{NaNo}_2+\text{HCl}}\text{B}$
$\text{C}_6\text{H}_5\text{N}_2^+\text{Cl}^{-}\xrightarrow[\Delta]{\text{CuCN}}\text{A}\ \ \ \ \xrightarrow{\text{H}_2\text{O}/\text{ H}^+}\text{B}$

Give the IUPAC name of the following organic compounds:

$\text{(CH}_3)_2\text{C}=\text{CH}-\text{C}-\text{CH}_3\\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ ||\\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{O}$

$\text{CH}_3\text{CH}\text{(Br)}\text{CH}_2\text{CONHCH}_3$

→

Give reason:
(i) Transition elements exhibit higher enthalpies of atomisation.
(ii) In aqueous solution, $Cr ^{2+}$ is stronger reducting agent than $Fe ^{2+}$.
(iii) The second ionisation enthalpy of Cu is higher then $Z n$.

Discuss the method to determine electrode potential of copper and zine by using standard hydrogen electrode.

Explain osmosis and osmatic pressure. Derive formula to find the molecular mass of solute on the basis of osmatic pressure of solution.

Resistance of a conductivity cell filled with 0.1 mol L^-1 KCl solution is $100\Omega.$ If the resistance of the same cell when filled with 0.02 mol L^-1 KCl solution is $520\Omega,$ calculate the conductivity and molar conductivity of 0.02 mol L^-1 KCl solution. The conductivity of 0.1 mol L^-1 KCl solution is $1.29\times10^{-2}\Omega^{-1}\text{cm}^{-1}.$

Explain preparation of haloarene from amine compound. ### Preparation of hyloarene by sandmayer reaction.

Give the equations of reaction of phenol with the following compounds:
(i) Benzene diazonium chloride
(ii) Acetone
(iii) Phthalic anhydride.

The decomposition of NH₃ on platinum surface,$\text{2NH}_{3}\text{(g)}\text{ }^{Pt}_\rightarrow\text{N}_{2}\text{(g)}+\text{3H}_{2}\text{(g)}$ is a zero order reaction with k$=\text{2.5}\times\text{10}^{-4}\text{Ms}^{-1}$ . what are the rates of production of N₂ and H₂?