Question

Ag3+(aq) + e− ⇌ Ag2+(aq) E° = 1.800 V

2H+(aq) + 2e− ⇌ H2(g) E° = 0.000 V

1. Answer the following questions under standard conditions

(a) The half-cell containing Ag²⁺/Ag³⁺ is the cathode .

(b) The half-cell containing H⁺/H₂ is the anode .

(c) What is E°_cell (in V)? Report your answer to three decimal places in standard notation (i.e., 0.123 V).1.800 V

(b) What is ΔG° (in kJ/mol) for the process that is occurring in the electrochemical cell? Report your answer to three significant figures in scientific notation (i.e., 1.23e2 kJ/mol).-3.47×10² kJ/mol2. (a) Which one of the following balanced chemical reactions describes the process occurring in the electrochemical cell?
Incorrect: 4H⁺(aq) + 2Ag²⁺(aq) → 2Ag³⁺(aq) + 2H₂(g).
Correct: 2Ag³⁺(aq) + H₂(g) → 2H⁺(aq) + 2Ag²⁺(aq).
Incorrect: 2Ag³⁺(aq) + 2H₂(g) → 4H⁺(aq) + 2Ag²⁺(aq).
Incorrect: 2H⁺(aq) + 2Ag²⁺(aq) → 2Ag³⁺(aq) + H₂(g).

(b) Under these conditions, the half-cell containing H⁺ and H₂ is the  anode cathode  .3. The electrochemical cell is comprised of a Pt electrode in a 4.76 × 10^-4 M solution of Ag³⁺ and 1.78 × 10^-3 M solution of Ag²⁺ coupled to a Pt electrode where the [H⁺] is 4.50 × 10^-1 M and the partial pressure of H₂(g) is 0.100 atm. The temperature of this cell is held constant at 298.15 K

(a) Under these conditions, the half-cell containing Ag²⁺ and Ag³⁺ is the  anode cathode  .

(c) What is E_cell (in V) for this electrochemical cell? Report your answer to three decimal places in standard notation (i.e., 0.123 V).

Tries 0/3

4. Answer the following questions under the conditions described in question 3.

(a) Which one of the following balanced chemical reactions describes the process occurring in the electrochemical cell?
2Ag³⁺(aq) + 2H₂(g) → 4H⁺(aq) + 2Ag²⁺(aq).
4H⁺(aq) + 2Ag²⁺(aq) → 2Ag³⁺(aq) + 2H₂(g).
2Ag³⁺(aq) + H₂(g) → 2H⁺(aq) + 2Ag²⁺(aq).
2H⁺(aq) + 2Ag²⁺(aq) → 2Ag³⁺(aq) + H₂(g).

(b) What is the value of ΔG (in kJ/mol) for the process occurring in this electrochemical cell under the conditions described in Part B? Report your answer to three significant figures in scientific notation (i.e., 1.23e2 kJ/mol).

Answer 1