Chemistry

Problem

The standard emf for the cell reaction

\text{Zn} + \text{Cu}^{2+} \rightarrow \text{Zn}^{2+} + \text{Cu}

is 1.10 volt at

25^{\circ}\text{C}

. The emf for the cell reaction when 0.1 M

\text{Cu}^{2+}

and 0.1 M

\text{Zn}^{2+}

solutions are used at

25^{\circ}\text{C}

is (a) 1.10 volt (b) 0.110 volt (c) -1.10 volt (d) -0.110 volt