Calculate the value of the reaction quotient,Q,for the galvanic cell expressed using shorthand notation below.Use the balanced chemical equation that has the smallest whole number stoichiometric coefficients.
Zn(s) ∣ Zn²⁺(aq,0.0100 M) ∣∣ Ag+(aq,1.25 M) ∣ Ag(s)

Question

Quizplus · Accepted Answer

The balanced chemical equation for the cell reaction is:
Zn(s) + 2Ag+(aq) → Zn2+(aq) + 2Ag(s)
The corresponding expression for Q is:
Q = [Zn2+(aq)][Ag(s)]2 / [Zn(s)][Ag+(aq)]2
Plugging in the given concentrations, we get:
Q = (0.0100 M)(1.252 M)2 / (1)(0.1252 M)2
Q = 6.40 × 10-13
Therefore, the best choice is D, 6.40 × 10-13.

Calculate the Value of the Reaction Quotient,Q,for the Galvanic Cell