Chapter 19, Problem 19.8QP

Interpretation Introduction

Interpretation:

Reason for dropping of cell emf after operating a Daniell cell has to be given.

Concept Information:

Daniell cell is an electrochemical cell that produces electricity where copper act as an anode and zinc act as a cathode.

Shorthand notation of Zn/Cu cell is,

Emf is the difference between two electrodes in an electrochemical cell.

When the redox reaction begins, the concentration of ions in the solution gets changed. As the concentration change, the cell potential also changes.

Oxidizing agent is a substance that removes electrons from another reactant in a chemical reaction and so it is reduced by taking electron onto itself and the reactant is oxidized by having its electron taken away.

Reducing agent is the element or compound in a redox reaction that donate an electron to another species and so it is oxidized.