What is the conductivity of 0.02 M HCl solution if molar conductivity of the solution at 25$$^\circ$$C is 412.3 $$\Omega^{-1}$$ cm$$^{-1}$$ mol$$^{-1}$$ ?

What is the charge required for the reduction of moles of Cu$$^{2+}$$ to Cu?

The resistance of $$0.2 \mathrm{M}$$ solution of an electrolyte is 30 ohm and conductivity is $$1.2 \mathrm{~S} \mathrm{~m}^{-1}$$. What is the value of cell constant?

Which from the following is the correct relationship between standard Gibbs energy change and standard cell potential?