An electrolysis setup containing aqueous copper(II) sulfate is run with an inert…

CHEMISTRY · Multi-part · AP · Chemistry · Thermodynamics and Electrochemistry · Thermodynamics and Electrochemistry

Problem

An electrolysis setup containing aqueous copper(II) sulfate is run with an inert platinum cathode at a constant current of

1.80\,\text{A}

. The experiment is terminated when exactly

1.50\,\text{g}

of copper has been deposited on the cathode. (a) Calculate the operating time, in seconds, required to deposit the

1.50\,\text{g}

of copper. (b) Using the same quantity of electric charge calculated in part (a), determine the mass of

\text{O}_2

gas produced simultaneously at the anode. Assume 100\% current efficiency and standard half-reactions for the species involved.