A strip of iron is placed in a 1 M solution of iron(II) sulfate, and a strip of

Question

A strip of iron is placed in a 1 M solution of iron(II) sulfate, and a strip of copper is placed in a 1 M solution of copper(II) chloride. The two solutions are connected with a salt bridge, and the two metals are connected to a voltmeter. With the two electrodes connected together, how do the CI^- ions move? Reduction Half-Reaction E degree (V) Fe^2+ (aq) + 2e^- rightarrow Fe(s) -0.41 Cu^2+(aq) + 2e^- rightarrow Cu(s) 0.34 A) through the external circuit from Cu to Fe B) through the salt bridge from the Cu half-cell to the Fe half-cell C) in random fashion D) in the direction opposite to the movement of the sulfate ions E) together with the Cu^2+ ions to form an insoluble precipitate

Explanation / Answer

Anions, negative ions (e.g. Cl-), are flowing from the salt bridge toward the anode to balance the positive charge of the Fe2+ ions produced.So, the correct answer is (B)

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