Friday
March 24, 2017

Post a New Question

Posted by on Saturday, March 30, 2013 at 8:45pm.

Calculate the molar mass of a diprotic acid.

It reaches the endpoint of the titration with NaOH at 28ml.
The initial concentration of NaOH is 0.09792. and the initial mass of the diprotic acid is 0.685g. I keep getting a molar mass of 500g/mol. but the options are all around 100-150.

  • Chemistry - , Saturday, March 30, 2013 at 9:33pm

    molesbase=1/2 moles acid
    .028*.09792*1/2 .685/molmass

    molmassacid= .685/(2* .028*.097920

    I don't get anything near 500g/mol

  • Chemistry - , Saturday, March 30, 2013 at 9:54pm

    So you need to times the molarity by two?

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question