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
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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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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