The highest electrical conductivity among the following aqueous solutions is of:

Aluminium oxide may be electrolyzed at $1000°\mathrm{C}$ to furnish aluminium metal.

(Atomic mass $=27 \mathrm{amu}$. $1$ Faraday $=96500 \mathrm{C}$) The cathode reaction is: ${\mathrm{Al}}^{3+}+3{\mathrm{e}}^{-}⟶\mathrm{Al}.$

To prepare $5.12 \mathrm{kg}$ of aluminium metal by this method would require:

Given data is at $25°\mathrm{C}$:

${\mathrm{Ag}}^0+{\mathrm{I}}^{-}\to \mathrm{AgI}+{\mathrm{e}}^{-}; \mathrm{E}°=0.152 \mathrm{V}$

$\mathrm{Ag}\to {\mathrm{Ag}}^{+}+{\mathrm{e}}^{-}; \mathrm{E}°=-0.800 \mathrm{V}$

What is the value of ${\mathrm{logK}}_{\mathrm{sp}}$ for $\mathrm{AgI}$ (Take $\frac{0.474}{0.059}=8.065$)

The equivalent conductances of two strong electrolytes at infinite dilution in ${\mathrm{H}}_2\mathrm{O}$ (where ions move freely through a solution) at $25°\mathrm{C}$ are given below:

${\mathrm{\Lambda }}_{{\mathrm{CH}}_3\mathrm{COONa}}^0=91.0{\mathrm{Scm}}^{2/\mathrm{equiv}}$ and ${\mathrm{\Lambda }}_{\mathrm{HCl}}^0=426.2{\mathrm{Scm}}^2/\mathrm{equiv}$

What additional information/quantity one needs to calculate $\mathrm{A}°$ of an aqueous solution of acetic acid?

Given: ${\mathrm{E}}_{{\mathrm{Cr}}^{3+}/\mathrm{Cr}}^0=-0.72,{\mathrm{E}}_{{\mathrm{Fe}}^{2+}/\mathrm{Fe}}^0=-0.42\mathrm{V}$

The potential for the cell $\mathrm{Cr}\left|{\mathrm{Cr}}^{3+}(0.1\mathrm{M})\Vert {\mathrm{Fe}}^{2+}(0.01\mathrm{M})\right|\mathrm{Fe}$ at $298\mathrm{K}$ (Take $\frac{2.303\mathrm{R}\left(298\right)}{\mathrm{F}}=0.06$)

Given: ${\mathrm{E}}_{{\mathrm{F}}_{\mathrm{e}}^{3+}/{\mathrm{F}}_{\mathrm{e}}}^0=-0.036\mathrm{V}, {\mathrm{E}}_{{\mathrm{Fa}}^{2+}/\mathrm{Fe}}^0=-0.439\mathrm{V}$

The value of standard electrode potential for the change, ${\mathrm{Fe}}_{\left(\mathrm{aq}\right)}^{3+}+{\mathrm{e}}^{-}⟶{\mathrm{Fe}}_{\left(\mathrm{aq}\right)}^{2+}$ will be: