Question

25ml of sulfuric acid from a car battery was accurately diluted to 500ml. 25ml of the diluted solution was titrated with 0.206 mol/L sodium hydroxide. It required 38.8 ml. Calculate the Molarity of the original battery acid and it's concentration in grams per litre.

Answer=3.20M

I'm not sure how to get the answer, I'm pretty sure it relates to c1v1=c2v2.

Thanks.
sulfuric acid is di-protic (two H+)

1/2 * (500 / 25) * .206 * 38.8 / 25
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