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What is the standard reduction potential E for the half-reaction Zn2 (aq) 2e- Zn(s)?
-0.76
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What is the standard reduction potential for the half reaction Zn2 plus plus 2e- equals Zn?
Zn2+ + 2e- <--> Zno -0.7618 V
What is the standard reduction potential E for the half reaction Zn2(aq) 2e Zn(s)?
-0.76
What is the standard reduction potential E for the half-reaction Zn2 (aq) 2e Zn(s)?
-0.76
What is the standard reduction Potential, E for the half - reaction Zn2 + (aq) + 2e- > Zn(s)?
-0.76
Which is most likely to be reduced Fe2 Cu2 Fe3 or Zn2?
Answer this question… Fe3+
What pair of half- reactions would have a negative total reduction potential?
silver reduced , gold oxidized
What is the voltage of a cell with half-reactions Zns Zn2 2e and Al3 3e Als?
- .92 V
What is the standard cell notation of galvanic cell made with zinc (zn) and aluminum (al)?
Zn(s)/Zn2+(aq)//Au+(aq)/Au(s)
What are the half-reaction for galvanic cell with Zn and Ni electrodes?
Zn(s)--- Zn2+(aq)+2e-and Ni2+(aq)+e----Ni(s)
How would you know all the acid has reacted when adding zinc to sulfuric acid?
Zinc has a negative reduction potential (Eo = -0.76V) so it is favorable for zinc to be oxidized (the opposite of being reduced) under standard conditions: Zn --> Zn2+ + 2 e- Eo = +0.76V In sulfuric acid you primarily have three species present (not including the water): H+, HSO4-, and SO42-. Of these three, H+ has the highest reduction potential: 2 H+ + 2 e- --> H2 Eo = 0.00V So in the presence of H+ ions from sulfuric acid, zinc will oxide to form Zn2+: 2 H+ + Zn --> H2 + Zn2+ Eo = 0.00V + 0.76V = 0.76 V
What is the reduction half reaction for Mg s ZnCl2 aq MgCl2 aq Zn s?
-2.37 V (apex) Chace
What is the standard cell notation of a galvanic made with zinc and gold?
Zn(s)/Zn2+(aq)//Au+(aq)/Au(s)
