Electrochemical Cells: Line Notation

Question

Write the cell notation for an electrochemical cell consisting of an anode where Cr²⁺ (aq) is oxidized to Cr³⁺ (aq) at a platinum electrode and a cathode where Sn²⁺ (aq) is reduced to Sn (s) . Assume all aqueous solutions have a concentration of 1 mol/L and gases have a pressure of 1 bar.

Answer 1

Use a | to separate electrode from aqueous solution and || to indicate the presence of a salt bridge.

Anode by convention is on the left and cathode is on the right.

Pt(s) | Cr²⁺ aq, 1M) | Cr³⁺(aq, 1M) || Sn²⁺(aq, 1M) | Sn(s) ... Line notation for the galvanic cell