• YOU can help the next generation of students in the community!
    Share your trial papers and notes on our Notes & Resources page

(Silver) Button Cell equation. (1 Viewer)

atBondi

New Member
Joined
Dec 22, 2009
Messages
26
Gender
Female
HSC
2010
Anode reaction
• Zn(s) + 2OH-(aq) >>>> Zn(OH)(2)(s)+ 2e-

Cathode reaction
• Ag2O(s) + H2O(l) + 2e- >>> 2Ag(s) + 2OH-(aq)



Is this the overall reaction? Or should the Zn(OH) in the anode reaction match the product in the overall reaction?
( like the product up there is Zn hydroxide? while in overall reaction its just zinc oxide?)

Overall Reaction:
Zn(s) + Ag2O(s) >> ZnO(s) + 2Ag(s)
 

study-freak

Bored of
Joined
Feb 8, 2008
Messages
1,133
Gender
Male
HSC
2009
Anode reaction
• Zn(s) + 2OH-(aq) >>>> Zn(OH)2(s)+ 2e-

Cathode reaction
• Ag2O(s) + H2O(l) + 2e- >>> 2Ag(s) + 2OH-(aq)



Is this the overall reaction? Or should the Zn(OH) in the anode reaction match the product in the overall reaction?
( like the product up there is Zn hydroxide? while in overall reaction its just zinc oxide?)

Overall Reaction:
Zn(s) + Ag2O(s) >> ZnO(s) + 2Ag(s)
Fixed underlined part
Overall: Zn(s)+Ag2O(s)+H20(l)->Zn(OH)2(s)+2Ag(s)
 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top