Calculate G and K at 25 C for the reactions in Exercises 38 and 42.

Calculate ΔG^ο and K at 25^οC for the reactions in Exercises 38 and 42.

Data in Exercises 38:

Sketch the galvanic cells based on the following overall reactions. Show the direction of electron flow, the direction of ion migration through the salt bridge, and identify the cathode and anode. Give the overall balanced equation. Assume that all concentrations are 1.0 M and that all partial pressures are 1.0 atm.

Data Exercises 42:

Sketch the galvanic cells based on the following half-reactions. Show the direction of electron flow, show the direction of ion migration through the salt bridge, and identify the cathode and anode. Give the overall balanced equation, and determine Ɛ° for the galvanic cells. Assume that all concentrations are 1.0 M and that all partial pressures are 1.0 atm.

Transcribed Image Text:

2+ 3+ a. IO3(aq) + Fe²+ (aq) Fe³+ (aq) + 1₂(aq) b. Zn(s) + Ag+ (aq) — Zn²+ (aq) + Ag(s)