What volume of 0.5 mol dm-3 H2SO4 will exactly neutralize 20cm3 of 0.1 mol dm-3 NaOH solution? - SchoolNGR

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What volume of 0.5 mol dm-3 H2SO4 will exactly neutralize 20cm3 of 0.1 mol dm-3 NaOH ...

What volume of 0.5 mol dm^-3 H₂SO₄ will exactly neutralize 20cm³ of 0.1 mol dm^-3 NaOH solution?

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A 2.0 cm³
B 5.0 cm³
C 6.8 cm³
D 8.3 cm³

Correct Answer: Option A

Explanation:
2NaOH + H₂SO₄ â†’ Na₂SO₄ + 2H₂O
C_aV_a/C_bV_b = ratio of acid/ratio of base
(0.5 * V_a)/(0.1 * 20) = 1/2
âˆ´ V_a = 2.0cm

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