First slide

Concentration methods

Question

400 ml of 2 M Hydrochloric acid completely neutralizes ‘X’ ml of 4 M Aluminium hydroxide. The value of ‘X’ is

Moderate

A

75
B

133.33
C

66.66
D

33.33

Solution

$V_{a} N_{a} = V_{b} N_{b} 400 (2) 1 = V_{2} (4) 3; V_{2} = 66.66 ml;$

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