Question

The standard EMF for the cell reaction,
\[\ce{Zn + Cu^{2+} -> Cu + Zn^{2+}}\] is 1.1 volt at 25°C.
The EMF for the cell reaction, when 0.1 M Cu²⁺ and 0.1 M Zn²⁺ solutions are used, at 25°C is:

Options

• 1.10 V

• 0.10 V

• −1.10 V

• −0.110 V

Answer 1

1.10 V

Explanation:

Since the concentration of ions is the same hence `"E"_"cell" = "E"_"cell"^0`