Consider the reaction:

CHEMISTRY · Multi-part · AP · Chemistry · Thermodynamics and Electrochemistry · Thermodynamics and Electrochemistry

Problem

2\text{Ag}^+ + \text{Cd} \rightarrow 2\text{Ag} + \text{Cd}^{2+}

. The standard reduction potential of

\text{Ag}^+ - \text{Ag}

and

\text{Cd}^{2+} - \text{Cd}

couples are +0.80 and -0.40 volt respectively. (a) What is the standard cell emf,

E^\circ

? (b) Will the total emf of the reaction be more +ve or -ve, if conc. of

\text{Cd}^{2+}

is 0.10M rather than 1M?