A 25.00 mL sample of sulfuric acid solution from an automobile battery reacts completely with 87.42 mL of a 1.95 M solution of potassium hydroxide. What is the molar concentration of the battery?

[H₂SO₄] = 6.82M

Explanation:

This is a sort of neutralization reaction:

A strong acid with a strong base to produce water and the correspondent salt.

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

Formula for neutralization is: M acid. volume acid = M base. volume base

M acid. 25 mL = 1.95 M. 87.42 mL

M acid = (1.95 M. 87.42 mL) / 25 mL → 6.82M