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.

Nicad batteries are rechargeable and are commonly used in cordless appliances. Although such batteries actually function under basic conditions, imagine an electrochemical cell using this setup.

(a) Write a balanced net ionic equation depicting the reaction occurring in the cell.

(b) What is oxidized? What is reduced? What is the reducing agent and what is the oxidizing agent?

(c) Which is the anode and which is the cathode?

(d) Calculate E° for the cell.

(e) What is the direction of electron flow in the external wire?

(f ) If the salt bridge contains KNO₃, toward which compartment will the NO^-₃ ions migrate?