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General Chemistry

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Moderate

Concept: Effect of Concentration on Cell Potential

CHEM-KER0OR

For the cell reaction:

$$2{Al}^{3+}(aq) + 3Mg(s) \xrightarrow [ ]{ } 2Al(s) + 3{Mg}^{2+}(aq) \quad\quad {E}_{cell}^{°} = 0.71\ V$$

Complete the following statements regarding changes in $[{Al}^{3+}]$ and $[{Mg}^{2+}]$.

If $[{Al}^{3+}]$ = 1.0 M and $[{Mg}^{2+}]$ = 2.0 M, ${E}_{cell}$ will be

${E}_{cell}^{°}$.

If $[{Al}^{3+}]$ = 3.0 M and $[{Mg}^{2+}]$ = 1.0 M, ${E}_{cell}$ will be

${E}_{cell}^{°}$.