Problem: A standard galvanic cell is constructed so that the overall cell reaction is2Al3+ (aq) + 3M (s) → 3M 2+ (aq) + 2Al (s)where M is an unknown metal. If ΔG° = -411 kJ for the overall cell reaction, identify the metal used to construct the standard cell.

🤓 Based on our data, we think this question is relevant for Professor Greenberger's class at PSU.

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Step 1

G° = -nFE°cellE°cell = G°-nFE°cell =-411 kJ × 103 J1 kJ- (6 mol e-)(96,468 JV·mol e-)

cell =  0.71 V


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Problem Details

A standard galvanic cell is constructed so that the overall cell reaction is

2Al3+ (aq) + 3M (s) → 3M 2+ (aq) + 2Al (s)

where M is an unknown metal. If ΔG° = -411 kJ for the overall cell reaction, identify the metal used to construct the standard cell.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Galvanic Cell concept. You can view video lessons to learn Galvanic Cell. Or if you need more Galvanic Cell practice, you can also practice Galvanic Cell practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Greenberger's class at PSU.

What textbook is this problem found in?

Our data indicates that this problem or a close variation was asked in Chemistry: An Atoms First Approach - Zumdahl 2nd Edition. You can also practice Chemistry: An Atoms First Approach - Zumdahl 2nd Edition practice problems.