Question

How do we assess the concentration of an acid?

Answer 1

How about by titration with a standardized base.....?

Explanation:

Of course you have to prepare the sample......i.e. dilute it so that it will reach a stoichiometric endpoint with a volume of `20*mL` of standardized `NaOH(aq)` titrant according to the equation.....

`HCl(aq) + NaOH(aq) rarr NaCl(aq) + H_2O(l)`

And of course you need an indicator, and you have abundant choice in this respect.