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For a Galvanic Cell That Uses the Following Two Half-Reactions

Question 14

Multiple Choice

For a galvanic cell that uses the following two half-reactions,
Cr2O72-(aq) + 14 H+(aq) + 6 e- → 2 Cr3+(aq) + 7 H2O(l)
Pb(s) → Pb2+(aq) + 2 e-
How many moles of Pb(s) are oxidized by three moles of Cr2O72-(aq) ?


A) 3
B) 6
C) 9
D) 18

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