[quntum]

hey guy's, i just finished this lab on diprotic acids, and i'm supposed to find the unknown acid. i did the calculations, but i'm not quite sure if I did them correctly.

Given:
-8.147g of NaOH on a 2.000L solution
-0.126g of unknown acid in ~40ml solution
-22.30ml of NaOH at equilibrium (found value on second equivalence point)
-molar mass of NaOH 40.00g/mol



can someone please tell me if I did this correctly? if not where did i go wrong?

thx

[Yggdrasil]

Looks good to me, although your final answer has too many significant figures.

[quntum]

i've looked on the internet to fond any diprotic acids that have a molar mass near 110, but i can't find any. the closets is Malonic acid (104g/mol) or Maleic acid  (116g/mol). as you can see i'm stuck in a pickle jar not knowing where to go from here. they both have a difference of 6g/mol. unless there's something in the middle that i'm unaware of.. can some one possibly point me in the direction of a table of some sort of the molar masses of diprotic acids?

thx

[Yggdrasil]

What are the pKa values for the acid?

[Borek]

Most likely quntum determined only molar mass. But asking won't hurt.