Chapter 3, Problem 95SCQ

Interpretation Introduction

Interpretation:

The experiments that proves Lactic acid is weak acid and equilibrium is reversible should be explained.

Concept introduction:

Acids can donate the ${\text{H}}^{\text{+}}$ ion, base can accept the ${\text{H}}^{\text{+}}$ ion.  Strong acids ionize in water very easily, weak acid will ionize very slowly.  Strong acid is one that completely ionizes (dissociates) in a solution (provided there is sufficient solvent).  In water, acid HA dissolves and gives ${\text{H}}^{\text{+}}$ (as hydronium ion ${\text{H}}_{\text{3}}{\text{O}}^{\text{+}}$ ion).  A strong electrolyte that’s an acid or a base is also a strong acid or a strong base.  A weak electrolyte that’s an acid or a base is also a weak acid or a weak base.