Chapter 15, Problem 15.10QP

Interpretation Introduction

Interpretation:

What is meant by the auto-ionization of water is defined and the expression for $K_w$ at given temperature has to be written.

Concept introduction:

Auto-ionization:

Auto ionization is also said to be self-ionization.  The reaction in which two like molecules undergo reactions to produce ions is said to be auto-ionization or self-ionization.

Ion-product constant for water ( $K_w$):

Ion-product constant for water is denoted by the symbol is $K_w$ and which is an equilibrium value of the ion product $\left[H_3{O}^{+}\right][O{H}^{-}]$.