Suppose the Redox Reaction in a Certain Zinc-Carbon Battery Is $\to$

question 129

Multiple Choice

Suppose the redox reaction in a certain zinc-carbon battery is Zn + 2 MnO₂ + 2 NH₄Cl $\to$ Mn₂O₃ + Zn(NH₃) ₂Cl₂ + H₂O.The battery is rated at 4.5 A . hr at 1.5 V.How many grams of zinc must be oxidized to deliver this much charge?

• A)11 g Zn
• B)1.8 g Zn
• C)3.7 g Zn
• D)8.2 g Zn
• E)5.5 g Zn

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