Conductance (with unit Siemens $\mathrm{S}$) is directly proportional to the area of the electrode plates and the concentration of the solution in the cell and is inversely proportional to the separation between the electrode plates. Then the unit of the constant of proportionality is:

Consider a very weak acid $\mathrm{HA}$ having ${\mathrm{K}}_{\mathrm{a}}={10}^{-10}$. If concentration of $\mathrm{HA}$ taken is $1\mathrm{M}$, then find the specific conductivity of the solution.

${\wedge }^{\infty }\left({\mathrm{H}}^{+}\right)=350{\mathrm{Scm}}^2/\mathrm{mol}$

${\wedge }^{\infty }\left({\mathrm{A}}^{-}\right)=100{\mathrm{Scm}}^2/\mathrm{mol}$

The standard free energy change for the following reaction is $-210\mathrm{kJ}$. What is the standard cell potential?

$2{\mathrm{H}}_2{\mathrm{O}}_2\left(\mathrm{aq}\right)⟶2{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)+{\mathrm{O}}_2\left(\mathrm{g}\right)$