The normality of the H₂SO₄ that reacted with 25cc of 5 % NaOH solution is 1.1 N.
The molarity of 5% NaOH is 1.32 M
25 cc of NaOH neutralized 30cc of H₂SO₄ solution.
Equation of reaction is given below:
Molarity of H₂SO₄ = 1.32 x 1 x 25/(30 x 2) = 0.55 M
moles of H⁺ ions per mole of H₂SO₄ = 2
Normality of H₂SO₄ = 0.55 x 2 = 1.1 N
In conclusion, the normality of an acid is determined from the molarity and the moles of H⁺ ions per mole of acid.
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