Q. The standard emf for the cell reaction $Zn + Cu^{2+} \to Zn^{2+} + Cu$ is $1.10$ volt at $25°C.$ The emf for the cell reaction when $0.1 M Cu^{2+}$ and $0.1 M Zn^{2+}$ solutions are used at $25°C$ is
Electrochemistry
Solution: