1. Physical Chemistry

Electrochemistry — Quiz

Test your understanding of electrochemistry with 5 practice questions.

Practice Questions

Question 1

Which of the following correctly expresses the relationship for the standard cell potential $E^\circ_{\text{cell}}$?

Question 2

Calculate the standard cell potential $E^\circ_{\text{cell}}$ for the cell composed of the half‐reactions: $\mathrm{Al^{3+}+3e^-\rightarrow Al}$ with $E^\circ=-1.66\,$V and $\mathrm{Cu^{2+}+2e^-\rightarrow Cu}$ with $E^\circ=+0.34\,$V. Which is the correct $E^\circ_{\text{cell}}$?

Question 3

For the galvanic cell $\mathrm{Zn|Zn^{2+}(0.010\,M)||Cu^{2+}(1.00\,M)|Cu}$ at 298 K with $E^\circ_{\text{cell}}=1.10\,$V, calculate the cell potential $E_{\text{cell}}$ using the Nernst equation $E=E^\circ-\frac{0.0592}{n}\log Q$.

Question 4

A current of 2.00 A is passed through an aqueous AgNO$_3$ solution for 30.0 min. Using $\mathrm{Ag^+ + e^-\rightarrow Ag(s)}$, $M(\mathrm{Ag})=107.9\,$g mol^{-1} and $F=96485\,$C mol^{-1}, how many grams of Ag deposit at the cathode?

Question 5

In a spontaneous galvanic cell, which electrode is the anode and what is its charge?