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Galvanic Cell Cell Diagram E°cell (Volts) 1 Mg | Mg(1.0 M) || Pb*?(1.0 M) | Pb 2.24 Zn | Zn2(1.0 M) || Pb*2(1.0 M) | Pb 0.63 3 Mg | Mg?(1.0 M) || Zn*?(1.0 M) | Zn ? The chemical reaction occurring in first galvanic cell is: Mg + Pb2 → Mg•2 + Pb 20. What is the standard cell potential for galvanic cell 3 depicted in the table above? (A) 2.87 V (B) 1.61 V (C) – 1.61 V (D) - 2,87 V

Galvanic Cell Cell Diagram E°cell (Volts) 1 Mg | Mg(1.0 M) || Pb*?(1.0 M) | Pb 2.24 Zn | Zn2(1.0 M) || Pb*2(1.0 M) | Pb 0.63 3 Mg | Mg?(1.0 M) || Zn*?(1.0 M) | Zn ? The chemical reaction occurring in first galvanic cell is: Mg + Pb2 → Mg•2 + Pb 20. What is the standard cell potential for galvanic cell 3 depicted in the table above? (A) 2.87 V (B) 1.61 V (C) – 1.61 V (D) - 2,87 V

Chemistry
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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Galvanic Cell Cell Diagram E°cell (Volts) Mg | Mg"(1.0 M) || Pb*?(1.0 M) | Pb 1 2.24 Zn | Zn*2(1.0 M) || Pb*2(1.0 M) | Pb 0,63 3 Mg | Mg*(1.0 M) || Zn*²(1.0 M) | Zn The chemical reaction occurring in first galvanic cell is: Mg + Pb+2 → Mg*2 + Pb 20. What is the standard cell potential for galvanic cell 3 depicted in the table above? (A) 2.87 V (B) 1.61 V (C) - 1.61 V (D) - 2,87 V 21. If the concentration of Mg+2 is changed from 1.0 M to 3.0 M in the galvanic cells above, what will happen to the observed cell voltages in galvanic cells 1 and 3? (A) The voltage in both galvanic cells 1 and 3 will increase. (B) The voltage will decrease in both galvanic cells 1 and 3. (C) The voltage in galvanic cell 1 will increase and will decrease in galvanic cell 3 (D) The voltage in galvanic cell 3 will increase and will decrease in galvanic cell 1. 22. Consider a voltaic cell based on these half-cells. E* = +0.80 V Ag (aq) + e → Ag(s) Cd"(aq) + 2e → Cd(s) E =-0.40 V Identify the anode and give the voltage of this cell under standard conditions. (A) Ag; Ecell = 0.40 V (B) Ag; Ecell = 2.00 V (C) Cd; Ecell = 1.20 V (D) Ag; Ecell = 2.00 V
Transcribed Image Text:Galvanic Cell Cell Diagram E°cell (Volts) Mg | Mg"(1.0 M) || Pb*?(1.0 M) | Pb 1 2.24 Zn | Zn*2(1.0 M) || Pb*2(1.0 M) | Pb 0,63 3 Mg | Mg*(1.0 M) || Zn*²(1.0 M) | Zn The chemical reaction occurring in first galvanic cell is: Mg + Pb+2 → Mg*2 + Pb 20. What is the standard cell potential for galvanic cell 3 depicted in the table above? (A) 2.87 V (B) 1.61 V (C) - 1.61 V (D) - 2,87 V 21. If the concentration of Mg+2 is changed from 1.0 M to 3.0 M in the galvanic cells above, what will happen to the observed cell voltages in galvanic cells 1 and 3? (A) The voltage in both galvanic cells 1 and 3 will increase. (B) The voltage will decrease in both galvanic cells 1 and 3. (C) The voltage in galvanic cell 1 will increase and will decrease in galvanic cell 3 (D) The voltage in galvanic cell 3 will increase and will decrease in galvanic cell 1. 22. Consider a voltaic cell based on these half-cells. E* = +0.80 V Ag (aq) + e → Ag(s) Cd"(aq) + 2e → Cd(s) E =-0.40 V Identify the anode and give the voltage of this cell under standard conditions. (A) Ag; Ecell = 0.40 V (B) Ag; Ecell = 2.00 V (C) Cd; Ecell = 1.20 V (D) Ag; Ecell = 2.00 V
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