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Which volume of 0.5 M H ₂SO₄ will exac...

Which volume of 0.5 M H ₂SO₄ will exactly neutralize 20 cm ³ of 0.1 M NaOH solution?

A.

2.0 cm ³

B.

5.0 cm ³

C.

6.8 cm ³

D.

8.3 cm ³

E.

10.4 cm ³

View answer & explanation

Correct answer is A

$\frac{C_AV_A}{C_bV_b} = \frac{1}{2}$

$frac{0.5 \times V_A}{0.1 \times 20} = \frac{1}{2}$

$V_A = \frac{0.1 \times 20}{2 \times 0.5} = \frac{1.0}{0.5)$

= 2cm²

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