# Titration of a weak acid by a strong base

## Diagram established by the strict method

Calculate for example the evolution of $pH$ when $20\; mL\; CH_3COOH \;0,10\; M$ is titrated by $NaOH\; 0,10\; M$ $x$ is the volume of $NaOH$ which has already been added (in $mL$)