An electrochemical cell has a half-cell in which a piece of


An electrochemical cell has a half-cell in which a piece of wire is dipped into a solution that is 2.0 M in KBr and 0.050 M in Br2. The other half-cell has magnesium metal immersed in 0.38 M Mg2+ solution.

(a) Which electrode is the anode and which is the cathode?

(b) What is the emf of the cell?

(c) What is the spontaneous cell reaction?

(d) What is the equilibrium constant of the cell reaction.

Assume that the temperature is 25°C.

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Chemistry: An electrochemical cell has a half-cell in which a piece of
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