Answer to Question #250425 in General Chemistry for Mr. Lee

Question

The electrolysis of an aqueous solution of KBr has the overall reaction:

2H2O + 2Br^- (aq) → H2(g) + Br2(1) +20H^- (aq

During the electrolysis, 0.497 mol of electrons pass through the cell.

a. How many electrons does this represent?

b. How many electrons does this represent?

c. Assuming 100% yield, how many liters of H2 and Br2 are produced at 25ºC and 0.997 atm? The density of Br2 (l) is 3.10 g/mL

Answer 1

The answer to your question is provided in the image: