[locagata48]

I don't know how to do this problem and i have 3 more that are molarity that i don't get. But maybe if someone shows me how to do this i an figure out the others.

A 2.29 g sample of an unknown acid is dissolved in 1.0 liter of water. A titration required 25.0 ml of .500 M NaOH to completely react with all the acid present. What is the molar mass of the acid?

I know that Molarity = moles/liter but how do you find moles for the problem do you find it for NaOH but then how would you do it with no #

[Astrokel]

hello lacagata48

you have to assume its monoprotic acid,

and yes you are right, you find the moles of NaOH used, hence you know the amount of the acid. You have moles and mass of acid, you can calculate for molar mass.