Author Question: The half-cell reaction for the oxidation of H2O(l) to O2(g) is given below. 2H2O(l) O2(g) + ... (Read 14 times)

yagurl · **on:** Nov 5, 2023

Question 1

Suppose the reaction Pb(s) + 2H⁺(aq) → Pb²⁺(aq) + H₂(g) is carried out at pH = 4.00 and at a hydrogen gas pressure of 1.00 atm. The concentration of lead(II) ions that causes this reaction to be at equilibrium is
◦ 2.5 M
◦ 1.6 × 10^–2 M
◦ 2.5 × 10^–4 M
◦ 1.6 × 10^–6 M
◦ 0.40 M

Question 2

The half-cell reaction for the oxidation of H₂O(l) to O₂(g) is given below.
2H₂O(l) → O₂(g) + 4H⁺(aq) + 4e^–
Which choice lists all of the following species that can oxidize H₂O to O₂(g) under standard-state conditions?
MnO₄^–(aq), Cl₂(g), Pb²⁺(aq), Cl^–(aq), Ag⁺(aq)
◦ Cl^–(aq) only
◦ Cl₂(g) only
◦ Pb²⁺(aq) and Ag⁺(aq)
◦ Cl^–(aq) and MnO₄^–(aq)
◦ MnO₄^–(aq) and Cl₂(g)

3ginamay · **Reply #1 on:** Nov 5, 2023

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