Determine E°cell at 25°C for the following reaction: 3 Sn²⁺ + 2 Al(s) → 2 Al³⁺ + 3 Sn(s)
Al³⁺ + 3 e- → Al(s) E° = -1.676 V
Sn²⁺ + 2 e- → Sn(s) E° = -0.137 V

Question

Determine E°cell at 25°C for the following reaction: 3 Sn²⁺ + 2 Al(s) → 2 Al³⁺ + 3 Sn(s) Al³⁺ + 3 e- → Al(s) E° = -1.676 V Sn²⁺ + 2 e- → Sn(s) E° = -0.137 V

Quizplus · Accepted Answer

The standard cell potential (E°cell) is calculated by subtracting the standard reduction potential of the anode from the standard reduction potential of the cathode. Here, the cathode is Sn²⁺/Sn with E° = -0.137 V, and the anode is Al³⁺/Al with E° = -1.676 V. E°cell = -0.137 V - (-1.676 V) = 1.539 V.

Determine E°cell at 25°C for the Following Reaction: 3 Sn2+

Determine E°cell at 25°C for the Following Reaction: 3 Sn²⁺