Redox Reactions

Practice Questions

College Chemistry › Redox Reactions

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Determine the oxidation number of each element in the compound $CrCl_{3}$

Balance the following redox reaction in acidic conditions:

$\textrm{SO}_{3}\textrm{ }^{2-}(aq)\textrm{ + MnO}_{4}^{-}(aq)\rightarrow\textrm{SO}_{4}\textrm{ }^{2-}(aq)\textrm{ + Mn}^{2+}(aq)$

Electrolysis of an unknown metal chloride, $\text{MCl}_3$ , with a current of for seconds deposits of the metal at the cathode. What is the metal?

Consider the following redox reaction.

$2Au^{3+}+6Br^{-}\rightarrow 2Au+3Br_{2}$

If $Au^{3+}$ has a reduction potential of and has a reduction potential of , what is the $E_{cell}^{o}$ for this redox reaction?

Consider the following redox reaction carried out in a voltaic cell.

$Pb+2Ag^{+}\rightarrow Pb^{2+}+Ag$

If the reduction potential for $Pb^{2+}$ is and for $Ag^{+}$ it is , what is the value of and $\Delta G^{o}$ for this reaction at a temperature of ?