A galvanic cell is constructed using a zinc electrode in 1.0 M ZnSO₄ and a copper…
CHEMISTRY · Single correct · A Level · Chemistry · Electrode potentials · Electrode potentials
Problem
A galvanic cell is constructed using a zinc electrode in 1.0 M ZnSO₄ and a copper electrode in 1.0 M CuSO₄. While the cell delivers current, which macroscopic change is most likely observed at the zinc electrode?
(a) A shiny copper layer plates onto the zinc electrode.
(b) Bubbles of gas form on the zinc electrode surface.
(c) The zinc electrode gradually loses mass.
(d) The zinc electrode gradually gains mass.