Chemistry · University
Nernst equation with a stated coefficient · formula reference
The reaction quotient is dimensionless; use the electron count for the balanced reaction as written.
Formula
The reaction quotient is dimensionless; use the electron count for the balanced reaction as written.
E = E° − (0.05916/n)log₁₀Q at 298 K
Worked example
At 298 K use E=E°−(0.05916/n)log₁₀Q. Given E°=1.6 V, n=5, and Q=10^(-1), find E. Round the final result to 4 decimal places if needed. Answer in V.
log₁₀Q=-1. Therefore E=1.6−(0.05916/5)(-1).
1.6118 V
Prerequisites and checking
Algebra and the topic definitions. Keep units and rounding consistent. State the model conditions before applying the formula.
Further reading and review references
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