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9. A steel railroad bridge uses a zinc sacrificial anode to limit the extent of oxidation of the steel. If a 7.8kg anode is completely

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9. A steel railroad bridge uses a zinc sacrificial anode to limit the extent of oxidation of the steel. If a 7.8kg anode is completely ozidized to Zn2+ over the course of 15.3 years, compute the average current flowing through the anode. Include at least 3 significant figures in vour answer. (1) amperes

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