The overall cell reaction occurring in an alkaline battery is Zn(s) + MnO2(s) + H2O(l) → ZnO(s) + Mn(OH)2(s)(a) How many moles of electrons flow per mole of reaction?(b) If 4.50 g of zinc is oxidized, how many grams of manganese dioxide and of water are consumed?(c) What is the total mass of reactants consumed in part (b)?(d) How many coulombs are produced in part (b)?(e) In practice, voltaic cells of a given capacity (coulombs) are heavier than the calculation in part (c) indicates. Explain.
The overall cell reaction occurring in an alkaline battery is Zn(s) + MnO2(s) + H2O(l) → ZnO(s) + Mn(OH)2(s)(a) How many moles of electrons flow per mole of reaction?(b) If 4.50 g of zinc is oxidized, how many grams of manganese dioxide and of water are consumed?(c) What is the total mass of reactants consumed in part (b)?(d) How many coulombs are produced in part (b)?(e) In practice, voltaic cells of a given capacity (coulombs) are heavier than the calculation in part (c) indicates. Explain.
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter17: Electrochemistry And Its Applications
Section: Chapter Questions
Problem 94QRT: An electrolytic cell is set up with Cd(s) in Cd(NO3)2(aq) and Zn(s) in Zn(NO3)2(aq). Initially both...
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The overall cell reaction occurring in an alkaline battery is
Zn(s) + MnO2(s) + H2O(l) → ZnO(s) + Mn(OH)2(s)
(a) How many moles of electrons flow per mole of reaction?
(b) If 4.50 g of zinc is oxidized, how many grams of manganese dioxide and of water are consumed?
(c) What is the total mass of reactants consumed in part (b)?
(d) How many coulombs are produced in part (b)?
(e) In practice, voltaic cells of a given capacity (coulombs) are heavier than the calculation in part (c) indicates. Explain.
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