What Is the Concentration of the H2SO4 Solution?

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SUMMARY

The concentration of the H2SO4 solution can be determined through stoichiometric calculations based on the reaction with NaOH. Given that 43.2 mL of 0.236 M NaOH reacts with 36.7 mL of H2SO4, the correct approach involves calculating moles of NaOH and using the 1:2 reaction ratio to find moles of H2SO4. The error in the initial calculations was dividing by the total solution volume instead of the volume of H2SO4 alone, which led to incorrect concentration results.

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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?
 
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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.
 

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