Sunday
April 20, 2014

Homework Help: College Chemistry

Posted by Emily on Wednesday, April 25, 2012 at 7:43pm.

I need help with this question!!

a sample of pure KHP weighing .8097g dissolved in water and titrated with 40.25 mL of NaOH solution. The same NaOH solution was used to titrate a solution of a weak diprotic acid H2X. A sample of 0.18694g of the weak acid was first dissolved in water in a 100 mL volumetric flask creating a slution of 100.00 mL. A 25.00 mL portion of this solution was tuitrated with the sodium hydroxide solution. The titration required 28.02 mL of the basic solution. What is the molar mass of the weak acid H2X?

I know that the KHP and the NaOH have a 1:1 mole ratio, and then using that you can substitute it to the formula H2X+NaOh=Na2X+H2O, and then make a IRF table...? PLEASE help!!!

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

College Chemistry - Plaster of Paris is the compound calcium sulfate hemihydrate...
chemistry - what is the density of an 84.7g sample of an unknown substance if ...
Chemistry - Really hard Chemistry question that I need help with. Any assistance...
college geology help please - I was the same person from yesterday. I need help ...
Chemistry - A sample of C3H8 has 2.64 x 10^24 atoms. How many carbon atoms does...
Chemistry (Dr.Bob222) - The half-life of P-32 is 14 days. How long after a ...
Math - Need help with one more question. Which best describes a statistical ...
College-Chemistry - NaOH(s)+ H2SO4(aq)=Na2SO4(aq) + H2O(l) Consider the ...
statistics - The income of college students is normally distributed with a mean ...
College Chemistry - Upon decomposition, one sample of magnesium fluoride ...

Search
Members