For the following electrochemical cell
Cu(s) | Cu₂(aq, 0.0155 m) || Ag(aq, 2.50 m) | Ag(s)

The cell potential of this electrochemical cell depends on the pH of the solution in the anode half-cell. Pt(s) | H₂(g, 1 atm) | H⁺(aq, ? M) || Cu²⁺(aq, 1.0 M) | Cu(s) What is the pH of the solution if E_cell is 355 mV?

The cell potential of this electrochemical cell depends on the gold concentration in the cathode half-cell. Pt(s) | H₂(g, 1.0 atm) | H⁺(aq, 1.0 M) || Au³⁺(aq, ? M) | Au(s) What is the concentration of Au³⁺ in the solution if E_cell is 1.22 V?

What is the balanced reaction for the cell diagram below? Al(s) | Al³⁺(aq) || Cd²⁺(aq) | Cd(s)