What volume of 0.5mldm3 H2SO4 will exactly neutralize 20cm3 of 0.1moldm3 NaOH Solution?
-
A.
2.0cm3 -
B.
5.0cm3 -
C.
6.8cm3 -
D.
8.3cm3
Correct Answer: Option A
Explanation
2NaOH + H2SO4 → Na2SO4 + 2H2O
CaVa) ÷ (CbVb) = ratio of acid / ratio of base
0.5Va ÷ (0.1 × 20) = ½
Va = 2.0cm3
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