Verify your calculation. Metals Oxidation half-reaction Zinc and copper Zinc and silver Zinc and lead Zinc and nickel Copper and silver Copper and lead Copper and nickel Silver and lead Silver and nickel Lead and nickel Ni→ Zn→ Zn2+ + 2e Zn → Zn²+ + 2e- Zn→ Zn2+ + 2e- Zn→ Zn2+ + 2e- Ni²+ + 2e¯ → Ni Cu → Cu²+ + 2e- Ag* + e → Ag Reduction half-reaction Cu2+ + 2e → Cu Ag* + e¯ → Ag Pb2+ + 2e →→ Pb Overall reaction Zn(s) + Cu²+(aq) → Zn2+(aq) + Cu(s) Zn(s) + 2Ag+(aq) → Zn²+(aq) + 2Ag(s) Zn(s) + Pb²+(aq) → Zn²+(aq) + Pb(s) Zn(s) + Ni²+(aq) → Zn²+(aq) + Ni(s) Cu(s) + 2Ag+(aq) → Cu²+(aq) + 2Ag(s) Standard cell potential (V) 1.10 1.56 0.63 0.51 0.46 Pb-Pb2+ + 2e- Cu2+ + 2e→ Cu Pb(s) + Cu²+(aq) → Pb²+(aq) + Cu(s) 0.47 → Ni²+ + 2e Cu2+ + 2e→ Cu Pb → Pb²+ + 2e- Ag+ + e → Ag Ni → Ni²+ + 2e Ni→ Ni²+ + 2e- Ag+ + e → Ag Pb2+ + 2e¯ → Pb Ni(s) + Cu²+(aq) → Ni²+(aq) + Cu(s) Pb(s) + 2Ag*(aq) → Pb²+(aq) + 2Ag(s) Ni(s) + 2Ag+(aq) → Ni²+(aq) + 2Ag(s) Ni(s) + Pb²+(aq) → Ni²+(aq) + Pb(s) 0.59 0.93 1.05 0.12 Copper(II) sulfate solutions 1 M and 0.5 M 1 M and 0.1 M Reaction quotient (Q) Cell potential (mv) 0.5 8.9 0.1 29.4 1 M and 0.05 M 1 M and 0.01 M 1 Mand 0.001 M 0.05 38.3 0.01 58.5 0.001 88.0 Slope -29.28 Unknown cell potential (mV) 34.4 Concentration of unknown (M)
Verify your calculation. Metals Oxidation half-reaction Zinc and copper Zinc and silver Zinc and lead Zinc and nickel Copper and silver Copper and lead Copper and nickel Silver and lead Silver and nickel Lead and nickel Ni→ Zn→ Zn2+ + 2e Zn → Zn²+ + 2e- Zn→ Zn2+ + 2e- Zn→ Zn2+ + 2e- Ni²+ + 2e¯ → Ni Cu → Cu²+ + 2e- Ag* + e → Ag Reduction half-reaction Cu2+ + 2e → Cu Ag* + e¯ → Ag Pb2+ + 2e →→ Pb Overall reaction Zn(s) + Cu²+(aq) → Zn2+(aq) + Cu(s) Zn(s) + 2Ag+(aq) → Zn²+(aq) + 2Ag(s) Zn(s) + Pb²+(aq) → Zn²+(aq) + Pb(s) Zn(s) + Ni²+(aq) → Zn²+(aq) + Ni(s) Cu(s) + 2Ag+(aq) → Cu²+(aq) + 2Ag(s) Standard cell potential (V) 1.10 1.56 0.63 0.51 0.46 Pb-Pb2+ + 2e- Cu2+ + 2e→ Cu Pb(s) + Cu²+(aq) → Pb²+(aq) + Cu(s) 0.47 → Ni²+ + 2e Cu2+ + 2e→ Cu Pb → Pb²+ + 2e- Ag+ + e → Ag Ni → Ni²+ + 2e Ni→ Ni²+ + 2e- Ag+ + e → Ag Pb2+ + 2e¯ → Pb Ni(s) + Cu²+(aq) → Ni²+(aq) + Cu(s) Pb(s) + 2Ag*(aq) → Pb²+(aq) + 2Ag(s) Ni(s) + 2Ag+(aq) → Ni²+(aq) + 2Ag(s) Ni(s) + Pb²+(aq) → Ni²+(aq) + Pb(s) 0.59 0.93 1.05 0.12 Copper(II) sulfate solutions 1 M and 0.5 M 1 M and 0.1 M Reaction quotient (Q) Cell potential (mv) 0.5 8.9 0.1 29.4 1 M and 0.05 M 1 M and 0.01 M 1 Mand 0.001 M 0.05 38.3 0.01 58.5 0.001 88.0 Slope -29.28 Unknown cell potential (mV) 34.4 Concentration of unknown (M)
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter18: Electrochemistry
Section: Chapter Questions
Problem 18.103QE
Related questions
Question
Transcribed Image Text:Verify your calculation.
Metals
Oxidation
half-reaction
Zinc and copper
Zinc and silver
Zinc and lead
Zinc and nickel
Copper and silver
Copper and lead
Copper and nickel
Silver and lead
Silver and nickel
Lead and nickel
Ni→
Zn→ Zn2+ + 2e
Zn → Zn²+ + 2e-
Zn→ Zn2+ + 2e-
Zn→ Zn2+ + 2e-
Ni²+ + 2e¯ → Ni
Cu → Cu²+ + 2e-
Ag* + e → Ag
Reduction
half-reaction
Cu2+ + 2e → Cu
Ag* + e¯ → Ag
Pb2+ + 2e →→ Pb
Overall
reaction
Zn(s) + Cu²+(aq) → Zn2+(aq) + Cu(s)
Zn(s) + 2Ag+(aq) → Zn²+(aq) + 2Ag(s)
Zn(s) + Pb²+(aq) → Zn²+(aq) + Pb(s)
Zn(s) + Ni²+(aq) → Zn²+(aq) + Ni(s)
Cu(s) + 2Ag+(aq) → Cu²+(aq) + 2Ag(s)
Standard cell potential (V)
1.10
1.56
0.63
0.51
0.46
Pb-Pb2+ + 2e-
Cu2+ + 2e→ Cu
Pb(s) + Cu²+(aq) → Pb²+(aq) + Cu(s)
0.47
→ Ni²+ + 2e
Cu2+ + 2e→ Cu
Pb → Pb²+ + 2e-
Ag+ + e → Ag
Ni → Ni²+ + 2e
Ni→ Ni²+ + 2e-
Ag+ + e → Ag
Pb2+ + 2e¯ → Pb
Ni(s) + Cu²+(aq) → Ni²+(aq) + Cu(s)
Pb(s) + 2Ag*(aq) → Pb²+(aq) + 2Ag(s)
Ni(s) + 2Ag+(aq) → Ni²+(aq) + 2Ag(s)
Ni(s) + Pb²+(aq) → Ni²+(aq) + Pb(s)
0.59
0.93
1.05
0.12
Copper(II) sulfate solutions
1 M and 0.5 M
1 M and 0.1 M
Reaction quotient (Q)
Cell potential (mv)
0.5
8.9
0.1
29.4
1 M and 0.05 M
1 M and 0.01 M
1 Mand 0.001 M
0.05
38.3
0.01
58.5
0.001
88.0
Slope
-29.28
Unknown cell potential (mV)
34.4
Concentration of unknown (M)
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