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The measured voltage of an electrochemical cell consisting of pure nickel immersed in a solution of Ni2+ ions of unknown concentration and pure cadmium immersed in a 5.00 M solution of Cd2+ ions was 0.133 V. The nickel was the cathode in this electrochemical cell and the experiment was conducted at 25 ºC. What was the concentration of Ni2+ ions in the solution?
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