For a given voltaic cell, you double the concentrations of all soluble components to 2.0 M instead of the standard 1.0 M. All other conditions are standard. What happens to the cell emf? A. It is decreased by half. B. Nothing; emf does not depend on amounts of reagents. OC. It doubles. OD. This question cannot be answered without knowing the reaction stoichiometry of the cell.

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