The standard reduction potentials of several common metal ions arelisted: Mg 2+

Question

The standard reduction potentials of several common metal ions arelisted: Mg 2+ = -2.38v Li+ = -3.04v Ni2+ = -.28v Mn 2+ =-1.18v Ca 2+ = -2.76v
Considering that E for 2 H2O (l) + 2e- --> H2 (g) + 2OH-(aq) is -0.83v, which of the following metals may be produced viaelectrolysis of an aqueous solution of its nitrate?
Pls Help. Mg 2+ = -2.38v Li+ = -3.04v Ni2+ = -.28v Mn 2+ =-1.18v Ca 2+ = -2.76v
Considering that E for 2 H2O (l) + 2e- --> H2 (g) + 2OH-(aq) is -0.83v, which of the following metals may be produced viaelectrolysis of an aqueous solution of its nitrate?
Pls Help.

Explanation / Answer

We Know that :      The given Reaction is :         2 H2O (l) + 2e- --> H2 (g) + 2OH- (aq)             The Ecell of the Reaction is - 0.83 V      We Know that the Property of Electrochemical series the metal with more negative Reductionpotential can displace    the lower metals .    So the following metal ions are producedalong with the electrolysis of water is Mg^+2 , Li ^+ , Mn^+2 , Ca^+2

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