1.
Cathode reaction (Reduction reaction)
MnO4- (aq) + 8 H+ (aq) + 5e Mn2+ (aq) + 4H2O (l) ....... (1)
2.
Anode reaction (Oxidation reaction)
Zn (s) Zn2+ (aq) + 2e .........(2)
3.
Overall spontaneous reaction
To balance the total electrons on both side
Overall reaction = Eq.1 2 + Eq.2 5
2MnO4- (aq) + 16 H+ (aq) + 5Zn (s) 5Zn2+ (aq) + 2 Mn2+ (aq) + 8 H2O (l)
4.
Yes enough information is present to calculate standard cell potential.
To calculate standard cell potential E0red values of cathode and anodes are required
5.
E0cell = E0cathode - E0anode
= 1.51 V - (-0.763) V
= 2.27 V ( 3 significant figures)
A chemist designs a galvanic cell that uses these two half-reactions: half-reaction standard reduction potential Ed=-0.763...
A chemist designs a galvanic cell that uses these two half-reactions: half-reaction standard reduction potential Zn(s) red -0.763 V Zn2+ (aq)+2e NO3(aq)+4 H+ (aq)+3e NO(9)+2H20(1) EO red = +0.96 V Answer the following questions about this cell. Write a balanced equation for the half-reaction that happens at the cathode. е х Write a balanced equation for the half-reaction that happens at the anode. Write a balanced equation for the overall reaction that powers the cell. Be sure the reaction is...
A chemist designs a galvanic cell that uses these two half-reactions: half-reaction standard reduction potential Ed=+0.96 v NO3(aq)+4 H* (aq)+3e NO(g)+2H2O() Br2()+2e → 2 Br (aq) Erd- +1.065 V Answer the following questions about this cell. 0-0 0 0 Write a balanced equation for the half-reaction that happens at the cathode. Write a balanced equation for the half-reaction that happens at the anode. Write a balanced equation for the overall reaction that powers the cell. Be sure the reaction is...
A chemist designs a galvanic cell that uses these two half-reactions: half-reaction standard reduction potential MnO2 (s) + 4H+ (aq) +2e−→ Mn+2 ( aq) +2H2O(l) =E0red+1.23V Cl2 (g) +2e−→ 2Cl− (aq) =E0red+1.359V Answer the following questions about this cell Write a balanced equation for the half-reaction that happens at the cathode. Write a balanced equation for the half-reaction that happens at the anode. Write a balanced equation for the overall reaction that powers the cell. Be sure the reaction is spontaneous as...
A chemist designs a galvanic cell that uses these two half-reactions: half-reaction standard reduction potential O2 (g) + 4H+ (aq) +4e− → 2H2O (l) =E0red+1.23V Zn+2 (aq) +2e− → Zn (s) =E0red−0.763V Answer the following questions about this cell. Write a balanced equation for the half-reaction that happens at the cathode. Write a balanced equation for the half-reaction that happens at the anode. Write a balanced equation for the overall reaction that powers the cell. Be sure the reaction is...
A chemist designs a galvanic cell that uses these two half-reactions half-reaction standard reduction potential red = +0.96 V red0.763 v NO, (ag)+4H(a)+3eNoo)+2 H,Ow Zan2+ (aq)+2e- → Zn(s) Answer the following questions about this cell Write a balanced equation for the half-reaction that happens at the cathode Write a balanced equation for the half-reaction that happens at the anode Write a balanced equation for the overall reaction that powers the cell. Be sure the reaction is spontaneous as written. Do...
A chemist designs a galvanic cell that uses these two half-reactions: half-reaction standard reduction potential = +0.771 V Fe'+ (aq)+e — Fe2+(aq) N2(9)+4 H20(1)+44 → N2H4(aq)+4 OH(aq) Eed=-1.16 V Answer the following questions about this cell. Write a balanced equation for the half-reaction that happens at the cathode. Write a balanced equation for the half-reaction that happens at the anode. Write a balanced equation for the overall reaction that powers the cell. Be sure the reaction is spontaneous as written....
A chemist designs a galvanic cell that uses these two half-reactions: half-reaction standard reduction potential Cu²+ (aq)+e. → Cut (aq) En e = +0.153 V NO3(aq)+41 (aq)+3 → NO(g)+2H 0(1) Ered = +0.96 V Answer the following questions about this cell. Write a balanced equation for the half-reaction that happens at the cathode. Write a balanced equation for the half-reaction that happens at the anode. x 6 ? Write a balanced equation for the overall reaction that powers the cell....
A chemist designs a galvanic cell that uses these two half-reactions: standard reduction potential half-reaction Br2)+2e 2 Br (aq) 1.065 V red E 2 H,00+2е H2(9)+2ОН (ад) 0.83 V 'red Answer the following questions about this cell. Write a balanced equation for the half-reaction that happens at the cathode Write a balanced equation for the half-reaction that happens at the anode Write a balanced equation for the overall reaction that powers the cell. Be sure the reaction is spontaneous as...
A chemist designs a galvanic cell that uses these two half-reactions: half-reaction standard reduction potential Eped +1.23 V MnO,(s)+44*(aq)+2e → Mn2+(aq)+2H20(1) Cu2+(aq)+e → Cut(aq) Eped +0.153 V Answer the following questions about this cell. xs ? Write a balanced equation for the half- reaction that happens at the cathode. Write a balanced equation for the half- reaction that happens at the anode. Write a balanced equation for the overall reaction that powers the cell. Be sure the reaction is spontaneous...
A chemist designs a galvanic cell that uses these two half-reactions: half-reaction standard reduction potential Ecd=-0.13 V Cro2 (aq)+4 H2O(1)+3e" → Cr(OH)3(s)+50H (aq) Cu2+ (aq)+e → Cut(aq) = +0.153 V Answer the following questions about this cell. 0-0 Write a balanced equation for the half-reaction that happens at the cathode. DI X Write a balanced equation for the half-reaction that happens at the anode. Write a balanced equation for the overall reaction that powers the cell. Be sure the reaction...