State the relation connecting the Faraday constant, $F$, the electron charge, $e$, and the Avogadro number, $L$.
Sketch suitable apparatus for this experiment. Label: the power supply with $+$ and $-$ terminals; the anode; the cathode; and the ammeter. Give the electrolyte composition.
Use these data together with relevant information from the Data Booklet to calculate $L$ to $3$ significant figures. The experimental values are: current through the cell $= 0.500\,\text{A}$; time for which current passed through the cell $= 30.0\,\text{min}$; initial mass of copper cathode $= 52.243\,\text{g}$; final mass of copper cathode $= 52.542\,\text{g}$.
Use the Data Booklet information to identify the substances produced at the anode and at the cathode when aqueous solutions of the following compounds are electrolysed: $\text{AgF}$, $\text{FeSO}_4$, and $\text{MgBr}_2$.