Answer to Question #2494 in Physical Chemistry for Akash
Which is bigger, hydrated Na+ or hydrated H+?
The molar mass of NaOH and H2O is (23 + 16 + 1) = 40 g/mol. and (2*1 + 16) = 18 g/mol. Thus, if we understood your question correctly, with equal amount of moles of each compound NaOH would have more mass than H2O.