Topical Questions These questions are keyed to the major topics in the chapter. Usually...

Topical Questions

These questions are keyed to the major topics in the chapter. Usually a question that is answered at the back of this book is paired with a similar one that is not.

Hydrazine, N₂H₄, has been proposed as the fuel in a fuel cell in which oxygen is the oxidizing agent. The reactions are

(a) Which reaction occurs at the anode and which at the cathode?

(b) What is the net cell reaction?

(c) If the cell is to produce 0.50 A of current for 50.0 h, what mass in grams of hydrazine must be present?

(d) What mass in grams of O₂ must be available to react with the mass of N₂H₄ determined in part (c)?