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Paper spacer ВATTERY Zn2 (aq)2e Moist paste of ZnCl2 and NH4CI Layer of MnO2 Zn(s) Anode: Cathode 2NH (aq)2MnO2(s) + 2e" -= Mn2O3(s) 2NH3(aq) +H2O(I) Zn2 (aq) +2NH3(aq) H20(I)Mn2O3(s) Graphite cathode Overall: Zn(s) + 2NH (aq) + 2MnO2(s) Zine anode Figure 19.7 Interior section of a dry cell of the kind used in flashlights and transistor radios. Actually, the cell is not completely dry, as it contains a moist electrolyte paste. Cathode (steel) Zn(Hg)20H (aq) ZnO(s) H2O(l) + 2e Cathode: HgO(s) + H2O(l) + 2e >Hg() +20H (aq) Zn(Hg)HgO(s) ZnO(s) + Hg(/) Anode (Zn can) Insulation Anode: Overall: Removable cap Anode Cathode Electrolyte solution containing KOH and paste of Zn(OH)2 and HgO Figure 19.8 Interior section of a mercury battery HSO, electrolyte 3 PbSO4(s)2e Pb(s) SO(aq) PbSO&(s) 2H2O(I) Negative plates (lead grills filled with spongy lead) -> PbO2(s) 4H* (aq) + SO% (aq) + 2e Pb(s)PbO2(s) + 4H*(aq) 2SO (aq) Positive plates (lead grills filled with PhO) Overall: 2PBSO4(s) + 2H2O(/)

Paper spacer ВATTERY Zn2 (aq)2e Moist paste of ZnCl2 and NH4CI Layer of MnO2 Zn(s) Anode: Cathode 2NH (aq)2MnO2(s) + 2e" -= Mn2O3(s) 2NH3(aq) +H2O(I) Zn2 (aq) +2NH3(aq) H20(I)Mn2O3(s) Graphite cathode Overall: Zn(s) + 2NH (aq) + 2MnO2(s) Zine anode Figure 19.7 Interior section of a dry cell of the kind used in flashlights and transistor radios. Actually, the cell is not completely dry, as it contains a moist electrolyte paste. Cathode (steel) Zn(Hg)20H (aq) ZnO(s) H2O(l) + 2e Cathode: HgO(s) + H2O(l) + 2e >Hg() +20H (aq) Zn(Hg)HgO(s) ZnO(s) + Hg(/) Anode (Zn can) Insulation Anode: Overall: Removable cap Anode Cathode Electrolyte solution containing KOH and paste of Zn(OH)2 and HgO Figure 19.8 Interior section of a mercury battery HSO, electrolyte 3 PbSO4(s)2e Pb(s) SO(aq) PbSO&(s) 2H2O(I) Negative plates (lead grills filled with spongy lead) -> PbO2(s) 4H* (aq) + SO% (aq) + 2e Pb(s)PbO2(s) + 4H*(aq) 2SO (aq) Positive plates (lead grills filled with PhO) Overall: 2PBSO4(s) + 2H2O(/)

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Calculate the emf cell of each overall reactions. Then, compare them with the actual emf cell of a dry cell, a mercury battery, and also accu!

Paper spacer ВATTERY Zn2 (aq)2e Moist paste of ZnCl2 and NH4CI Layer of MnO2 Zn(s) Anode: Cathode 2NH (aq)2MnO2(s) + 2e" -= Mn2O3(s) 2NH3(aq) +H2O(I) Zn2 (aq) +2NH3(aq) H20(I)Mn2O3(s) Graphite cathode Overall: Zn(s) + 2NH (aq) + 2MnO2(s) Zine anode Figure 19.7 Interior section of a dry cell of the kind used in flashlights and transistor radios. Actually, the cell is not completely dry, as it contains a moist electrolyte paste. Cathode (steel) Zn(Hg)20H (aq) ZnO(s) H2O(l) + 2e Cathode: HgO(s) + H2O(l) + 2e >Hg() +20H (aq) Zn(Hg)HgO(s) ZnO(s) + Hg(/) Anode (Zn can) Insulation Anode: Overall: Removable cap Anode Cathode Electrolyte solution containing KOH and paste of Zn(OH)2 and HgO Figure 19.8 Interior section of a mercury battery HSO, electrolyte 3 PbSO4(s)2e Pb(s) SO(aq) PbSO&(s) 2H2O(I) Negative plates (lead grills filled with spongy lead) -> PbO2(s) 4H* (aq) + SO% (aq) + 2e Pb(s)PbO2(s) + 4H*(aq) 2SO (aq) Positive plates (lead grills filled with PhO) Overall: 2PBSO4(s) + 2H2O(/)
Transcribed Image Text:Paper spacer ВATTERY Zn2 (aq)2e Moist paste of ZnCl2 and NH4CI Layer of MnO2 Zn(s) Anode: Cathode 2NH (aq)2MnO2(s) + 2e" -= Mn2O3(s) 2NH3(aq) +H2O(I) Zn2 (aq) +2NH3(aq) H20(I)Mn2O3(s) Graphite cathode Overall: Zn(s) + 2NH (aq) + 2MnO2(s) Zine anode Figure 19.7 Interior section of a dry cell of the kind used in flashlights and transistor radios. Actually, the cell is not completely dry, as it contains a moist electrolyte paste. Cathode (steel) Zn(Hg)20H (aq) ZnO(s) H2O(l) + 2e Cathode: HgO(s) + H2O(l) + 2e >Hg() +20H (aq) Zn(Hg)HgO(s) ZnO(s) + Hg(/) Anode (Zn can) Insulation Anode: Overall: Removable cap Anode Cathode Electrolyte solution containing KOH and paste of Zn(OH)2 and HgO Figure 19.8 Interior section of a mercury battery HSO, electrolyte 3 PbSO4(s)2e Pb(s) SO(aq) PbSO&(s) 2H2O(I) Negative plates (lead grills filled with spongy lead) -> PbO2(s) 4H* (aq) + SO% (aq) + 2e Pb(s)PbO2(s) + 4H*(aq) 2SO (aq) Positive plates (lead grills filled with PhO) Overall: 2PBSO4(s) + 2H2O(/)
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