For the reaction

CHEMISTRY · Subjective · A Level · Chemistry · Chemical equilibria (Le Chatelier’s principle and Kc) · Chemical equilibria (Le Chatelier’s principle and Kc)

Problem

For the reaction, 2Fe3+(aq.)+(Hg2)2+(aq.)⇌2Fe2+(aq.)+2Hg2+(aq.)2Fe^{3+}(aq.) + (Hg_2)^{2+}(aq.) \rightleftharpoons 2Fe^{2+}(aq.) + 2Hg^{2+}(aq.) KC=9.14×10−6K_C = 9.14 \times 10^{-6} at 25°C. If the initial concentration of the ions are Fe3+=0.5MFe^{3+} = 0.5 M , (Hg2)2+=0.5M(Hg_2)^{2+} = 0.5 M , Fe2+=0.03MFe^{2+} = 0.03 M and Hg2+=0.03MHg^{2+} = 0.03 M . What will be the concentrations of ions at equilibrium?

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