Chemistry
JAMB 2015
What volume of 0.5mldm
3 H
2SO
4 will exactly neutralize 20cm
3 of 0.1moldm
3 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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