Reaction quotient is

CHEMISTRY · Single correct · A Level · Chemistry · Electrode potentials · Electrode potentials

Problem

Zn+Cu2+(aq)⇌Cu+Zn2+(aq)\text{Zn} + \text{Cu}^{2+}(\text{aq}) \rightleftharpoons \text{Cu} + \text{Zn}^{2+}(\text{aq}) Reaction quotient is Q=[Zn2+][Cu2+]Q = \frac{[\text{Zn}^{2+}]}{[\text{Cu}^{2+}]} Ecell∘=1.10 VE^\circ_{\text{cell}} = 1.10\,\text{V}. EcellE_{\text{cell}} will be 1.1591 V1.1591\,\text{V} when: (a) [Cu2+]/[Zn2+]=0.01[\text{Cu}^{2+}]/[\text{Zn}^{2+}] = 0.01 (b) [Zn2+]/[Cu2+]=0.01[\text{Zn}^{2+}]/[\text{Cu}^{2+}] = 0.01 (c) [Zn2+]/[Cu2+]=0.1[\text{Zn}^{2+}]/[\text{Cu}^{2+}] = 0.1 (d) [Zn2+]/[Cu2+]=1[\text{Zn}^{2+}]/[\text{Cu}^{2+}] = 1

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