# What is the pH of salt and vinegar?

Common salt solutions are $p H$ neutral. Vinegar solutions have $p H$ $\cong$ $3 - 4$.
$N a C l$, as the salt of a strong acid and a strong base is $p H$ neutral in aqueous solution. The $p H$ of a given concentration of vinegar (aqueous acetic acid) may be calculated given ${K}_{a}$ for acetic acid.