In a titration, 16.02 mL of 0.100M NaOH was required to titrate 0.2011 g of an unknown acid, HX. What is the molar mass of the acid?
We assume the acid to be monoprotic.
Therefore, moles of NaOH used
Moles of NaOH:
Thus your sample mass represents
The molar mass is simply the quotient,