Question

1. In the spaces provided, write the correct coefficient for each species when the reaction is properly balanced (acidic solutions). Do not worry about indicating the amount of any H⁺ or H₂O that may be present.

(a) _________Fe²⁺(aq) + _________Cr₂O₇^2–(aq) → ________Fe³⁺(aq) + _________Cr³⁺(aq)

(b) __________S₈(s) + ______________O₂(g) → ___________SO₄^2–(aq)

2. Determine the values of E°_cell and ΔG° for the following reactions.

(a) O₂(g) + 4 I^–(aq) + 4 H⁺(aq) → 2 H₂O(l) + 2 I₂(s)             E°_cell _________ ΔG°__________

(b) 4 IO₃^–(aq) + 4 H⁺(aq) → 2 I₂(s) + 2 H₂O(l) + 5 O₂(g)  E°_cell _________ ΔG°__________

3. Determine the numerical value of K_eq at 25 °C for the electrochemical reactions below.  I haven’t lectured on this in class, but the “how-to” is clearly illustrated in the textbook in Chapter 19.

(a) PbO₂(s) + 4 H⁺(aq) + 2 Cl^–(aq) → ← Pb²⁺(aq) + 2 H₂O(l) + Cl₂(g)   (acidic solution) K_{eq____________________________}

(b) 3 O₂(g) + 2 Br^–(aq) → ← 2 BrO₃^–(aq) (basic solution)

K_{eq____________________________}

Answer 1

Hello, i am sorry to say that as per HOMEWORKLIB RULES experts can answer either only one full question that too first question or first 4 sub-parts like a), b), c) & d) only. I request you to please post remaining question as separate one since my allotted time could not permit me to answer more than one question also. Thank you in advance for your continued support to us.

Really 1a & 1b takes a lot of time, please see below how much work is needed.

Hope this helped you!

Thank You So Much! Please Rate this answer as you wish.("Thumbs Up")