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Half-potentials. Homework – Unanswered Due in 8 hours For the reaction: Au(s) + 4H" (aq) +...
E° = -0.04 V For the reaction: Au(s) + 4H+ (aq) + NO3(aq) + 4Cl(aq) →...
E° = -0.04 V For the reaction: Au(s) + 4H+ (aq) + NO3(aq) + 4Cl(aq) → AuCl4- (aq) + NO(g) + 2H20 If the standard potential for the reduction of NO3(aq) to NO(g) is +0.96 V, determine the value of Eº for the following half-reaction AuCl4 (aq) + 3e → Au(s) + 4C1 (aq)
Standard Electrode Potentials at 25?C Reduction Half-Reaction E?(V) F2(g)+2e? ?2F?(aq) 2.87 Au3+(aq)+3e? ?Au(s) 1.50 Cl2(g)+2e? ?2Cl?(aq)...
Standard Electrode Potentials at 25?C Reduction Half-Reaction E?(V) F2(g)+2e? ?2F?(aq) 2.87 Au3+(aq)+3e? ?Au(s) 1.50 Cl2(g)+2e? ?2Cl?(aq) 1.36 O2(g)+4H+(aq)+4e? ?2H2O(l) 1.23 Br2(l)+2e? ?2Br?(aq) 1.09 NO3?(aq)+4H+(aq)+3e? ?NO(g)+2H2O(l) 0.96 Ag+(aq)+e? ?Ag(s) 0.80 I2(s)+2e? ?2I?(aq) 0.54 Cu2+(aq)+2e? ?Cu(s) 0.16 2H+(aq)+2e? ?H2(g) 0 Cr3+(aq)+3e? ?Cr(s) -0.73 2H2O(l)+2e? ?H2(g)+2OH?(aq) -0.83 Mn2+(aq)+2e? ?Mn(s) -1.18 How can the table be used to predict whether or not a metal will dissolve in HCl? In HNO3? Drag the terms on the left to the appropriate blanks on the right to...
Oxidation half-reaction: Zn (s) + 2 OH- (aq) Z ZnO (s) + H20 (1) +2 €...
Oxidation half-reaction: Zn (s) + 2 OH- (aq) Z ZnO (s) + H20 (1) +2 € €°ox = +1.28 V Reduction half-reaction: 2 MnO2 (s) + H20 (1) + 2 € Mn203 (s) + 2OH- (aq) Ered = +0.15 V Ch9: Q22 Homework • Unanswered Given the half-reaction potentials above, what is the total cell potential of an alkaline battery in volts (V)? Numeric Answer: Unanswered Submit
A certain half-reaction has a standard reduction potential +0.14 V. An engineer proposes using this half-reactio...
A certain half-reaction has a standard reduction potential +0.14 V. An engineer proposes using this half-reaction at the anode of a galvanic cell that must provide at least 0.80 V of electrical power. The cell will operate under standard conditions Note for advanced students: assume the engineer requires this half-reaction to happen at the anode of the cell. Is there a minimum standard reduction potential that the hall reaction used at the cathode of this cell can have? ves, there...
Question 2 A voltaic cell is constructed from two half cells, whose standard reduction potentials are...
Question 2 A voltaic cell is constructed from two half cells, whose standard reduction potentials are given below: vo2+(aq) + 2H+(aq) + e + V3+(aq) + H2001) Ered = -0.340 V NO3 (aq) + 4H+(aq) + 3e → NO(g) + 2H2O(1) Eºred = 0.964 V What is the overall cell potential? Selected Answer: 3.0.624
Given the following two half reactions with their standard reduction potentials: Rh3+(aq) + 3e− → Rh(s)...
Given the following two half reactions with their standard reduction potentials: Rh3+(aq) + 3e− → Rh(s) E° = 0.76 V Au+(aq) + e− → Au(s) E° = 1.69 V What is the cell potential (E, in Volts) for a cell at 298.15 K whose anode consists of [Rh3+] = 0.40 M and Rh(s), and whose cathode consists of [Au+] = 0.10 M and Au(s)?
A certain half-reaction has a standard reduction potential E = -0.45 V. An engineer proposes using...
A certain half-reaction has a standard reduction potential E = -0.45 V. An engineer proposes using this half-reaction at the cathode of a galvanic cell that must provide at least 1.00 V of electrical power. The cell will operate under standard conditions Note for advanced students: assume the engineer requires this half-reaction to happen at the cathode of the cell. 0-0 . " Is there a minimum standard reduction potential that the half-reaction used at the anode of this cell...
Consider the following half-reactions and their reduction potentials (volt Au (aq) +3e- Au(s) +1....
Consider the following half-reactions and their reduction potentials (volt Au (aq) +3e- Au(s) +1.50 petad) +2 e' → Pt(s) +1.20 Co2+(aq) + 2 e' → Cols) -0.28 Mn? (aq)+2e Mn/s) -1.18 Which one of the following statements is correct? O A Ptis) can reduce Ht in aqueous solution OB. P (ag) can be reduced by Cols) OC. A (aa) is the weakest oxidizing agent D. Mn? (aq) can oxidize Au (s) OE. Auls) is the strongest reducing agent ous Save...
3. (24 points) Consider the following reaction: Au(s) + NO3(aq) + 4H+ (aq) → NO(g) +...
3. (24 points) Consider the following reaction: Au(s) + NO3(aq) + 4H+ (aq) → NO(g) + 2 H20() + Aul(aq) SHOW ALL WORK: Equations written in symbols first. All conversions. Units on every number. a. (4 points) What is the standard cell potential? b. (5 points) What is the standard free energy change for this cell? (Be sure your answer is in the appropriate units for free energy) c. (2 points) As written would this reaction be the basis for...
A chemist designs a galvanic cell that uses these two half-reactions: standard reduction potential half-reaction +...
A chemist designs a galvanic cell that uses these two half-reactions: standard reduction potential half-reaction + O2(9)+4 H (aq)+4e' 2H20) = 1.23 V red Ered Fe+. (аq) Fe3(aq)+e = +0.771 V Answer the following questions about thiss 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...
E° = -0.04 V For the reaction: Au(s) + 4H+ (aq) + NO3(aq) + 4Cl(aq) → AuCl4- (aq) + NO(g) + 2H20 If the standard potential for the reduction of NO3(aq) to NO(g) is +0.96 V, determine the value of Eº for the following half-reaction AuCl4 (aq) + 3e → Au(s) + 4C1 (aq)
Oxidation half-reaction: Zn (s) + 2 OH- (aq) Z ZnO (s) + H20 (1) +2 € €°ox = +1.28 V Reduction half-reaction: 2 MnO2 (s) + H20 (1) + 2 € Mn203 (s) + 2OH- (aq) Ered = +0.15 V Ch9: Q22 Homework • Unanswered Given the half-reaction potentials above, what is the total cell potential of an alkaline battery in volts (V)? Numeric Answer: Unanswered Submit
A certain half-reaction has a standard reduction potential +0.14 V. An engineer proposes using this half-reaction at the anode of a galvanic cell that must provide at least 0.80 V of electrical power. The cell will operate under standard conditions Note for advanced students: assume the engineer requires this half-reaction to happen at the anode of the cell. Is there a minimum standard reduction potential that the hall reaction used at the cathode of this cell can have? ves, there...
Question 2 A voltaic cell is constructed from two half cells, whose standard reduction potentials are given below: vo2+(aq) + 2H+(aq) + e + V3+(aq) + H2001) Ered = -0.340 V NO3 (aq) + 4H+(aq) + 3e → NO(g) + 2H2O(1) Eºred = 0.964 V What is the overall cell potential? Selected Answer: 3.0.624
A certain half-reaction has a standard reduction potential E = -0.45 V. An engineer proposes using this half-reaction at the cathode of a galvanic cell that must provide at least 1.00 V of electrical power. The cell will operate under standard conditions Note for advanced students: assume the engineer requires this half-reaction to happen at the cathode of the cell. 0-0 . " Is there a minimum standard reduction potential that the half-reaction used at the anode of this cell...
Consider the following half-reactions and their reduction potentials (volt Au (aq) +3e- Au(s) +1.50 petad) +2 e' → Pt(s) +1.20 Co2+(aq) + 2 e' → Cols) -0.28 Mn? (aq)+2e Mn/s) -1.18 Which one of the following statements is correct? O A Ptis) can reduce Ht in aqueous solution OB. P (ag) can be reduced by Cols) OC. A (aa) is the weakest oxidizing agent D. Mn? (aq) can oxidize Au (s) OE. Auls) is the strongest reducing agent ous Save...
3. (24 points) Consider the following reaction: Au(s) + NO3(aq) + 4H+ (aq) → NO(g) + 2 H20() + Aul(aq) SHOW ALL WORK: Equations written in symbols first. All conversions. Units on every number. a. (4 points) What is the standard cell potential? b. (5 points) What is the standard free energy change for this cell? (Be sure your answer is in the appropriate units for free energy) c. (2 points) As written would this reaction be the basis for...
A chemist designs a galvanic cell that uses these two half-reactions: standard reduction potential half-reaction + O2(9)+4 H (aq)+4e' 2H20) = 1.23 V red Ered Fe+. (аq) Fe3(aq)+e = +0.771 V Answer the following questions about thiss 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...
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