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One kind of battery used in watches contains mercury(II) oxide. As current flows, the mercury oxide is reduced to mercury. HgO(...Asked by Steve
One kind of battery used in watches contains mercur(II) oxide. As current flows, the mercury oxide is reduced to mercury.
HgO(s) + H2O(l) + 2e^- ==> Hg(l) + 2OH^-(aq)
If 2.5x10^-5 amperes flows continuously 1095 days, what mass of Hg(l) is produced?
(2.5x10^-5)(1095days)(24hours/day)(3600seconds/hour) = (mass of Hg)(1 mol Hg/mw Hg)(2 mol e^-/1 mol Hg)
2365.2 = (x grams Hg)(1 mol Hg/200.59gHg)(2 mol e-/1 mol Hg)
= 23.58 grams
HgO(s) + H2O(l) + 2e^- ==> Hg(l) + 2OH^-(aq)
If 2.5x10^-5 amperes flows continuously 1095 days, what mass of Hg(l) is produced?
(2.5x10^-5)(1095days)(24hours/day)(3600seconds/hour) = (mass of Hg)(1 mol Hg/mw Hg)(2 mol e^-/1 mol Hg)
2365.2 = (x grams Hg)(1 mol Hg/200.59gHg)(2 mol e-/1 mol Hg)
= 23.58 grams
Answers
Answered by
DrBob222
Check your work. It looks to me as if you have omitted the 96,485 factor. The 2365.2 looks ok.
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