Nernst Equation Calculator

Find cell potential under non-standard conditions.

Cell potential (E) (V) 1.13

Formula: E = E° − (RT ÷ nF) ln Q

Step-by-step with your numbers:

1. Values used:

2. Standard potential (E°) = 1.1 V

3. Electrons transferred (n) = 2

4. Reaction quotient (Q) = 0.1

5. Temperature = 298 K

7. Cell potential (E) = 1.13V

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The Nernst equation adjusts cell potential for actual concentrations.

The math behind it

E = E° − (RT ÷ nF) × ln(Q). At 298 K this is E° − (0.0257/n) ln Q.

E° 1.1 V, n 2, Q 0.1 → ~1.13 V.

Standard conditions?

When Q = 1, ln Q = 0 and E = E°.