What Is the Concentration of the H2SO4 Solution?

[Attraction]

Homework Statement

Given the following reaction:

H₂SO₄ + 2 NaOH ------>> Na₂SO₄ + 2 H₂O

If 43.2 mL of 0.236 M NaOH reacts with 36.7 mL of H₂SO₄ , what is the concentration of the H₂SO₄ solution?

The Attempt at a Solution

I am looking for the concentration of the H₂SO₄ solution

My plan was...

Volume of NaOH ---> moles NaOH ---> moles H₂SO₄ ----> concentration H₂SO₄

But I am not getting the right answer, what am I doing wrong here?

 

[Borek]

Plan is right, no idea what went wrong. Show details of your calculations.

Have you remembered they react 1:2?

Compare: http://www.titrations.info/titration-calculation

 

[Attraction]

Hi Borek.

I just figured it out. My mistake was that to convert from moles H2SO4 to concentration H2SO4 I was dividing by the total amount of solution rather than the H2SO4 in the solution. Silly stuff, I need to be thinking more clearly.

Thanks for that link. It's helpful.