What is the normality of H₂SO₄?
The normality of H₂SO₄ that was neutralized with 25 cc of NaOH is 1.1 N.
Molarity of 5% NaOH:
The molar mass of NaOH = 40.00
(Through density tables).
value of 5% NaOH solution density = 1.0554 g/mL.
∴ 10 × 5 × 1.0554/40.00 = 1.32 M.
Thus, Molarity of 5% NaOH = 1.32 M.
30 cc of H₂SO₄ the solution was neutralized with 25 cc of NaOH.
Reaction:
2 NaOH + H₂SO₄ → [tex]Na_{2}SO_{4}[/tex] + 2[tex]H_{2}O[/tex]
Molarity of H₂SO₄ = 1.32 × 1 × 25/(30×2) = 0.55 M.
Normality = Molarity × moles of H⁺ ions per mole of H₂SO₄
moles of H⁺ ions per mole of H₂SO₄ = 2
Normality of H₂SO₄ = 0.5 × 2 = 1.1 N.
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