?Sketch a voltaic cell for each redox reaction. Label the anode and cathode and indicate
Chapter 20, Problem 44(choose chapter or problem)
Sketch a voltaic cell for each redox reaction. Label the anode and cathode and indicate the half-reaction that occurs at each electrode and the species present in each solution. Also indicate the direction of electron flow.
a. \(Ni^{2+}(aq) + Mg(s) \rightarrow Ni(s) + Mg^2+(aq)\)
b. \(2 H^{+}(aq) + Fe(s) \rightarrow H_{2}( g) + Fe^{2+}(aq)\)
c. \(2 NO_{3}^{-}(aq) + 8 H^{+}(aq) + 3 Cu(s) \rightarrow 2 NO( g) + 4 H_{2}O(l) + 3 Cu^{2+}(aq)\)
Text Transcription:
Ni^2+(aq) + Mg(s) Ni(s) + Mg^2+(aq)
2 H^+(aq) + Fe(s) H_2( g) + Fe^2+(aq)
2 NO_3^-(aq) + 8 H^+(aq) + 3 Cu(s) 2 NO( g) + 4 H_2O(l) + 3 Cu^2+(aq)
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