First slide

Concentration methods

Question

60 ml of 1 M Phosphorous acid completely neutralizes 180 ml of ‘X’ M KOH solution. The value of ‘X’ is

Moderate

A

0.66
B

0.33
C

1.32
D

0.166

Solution

$V_{a} N_{a} = V_{b} N_{b} 60 (1) 2 = 180 (M) 1; M = 0.66 M;$

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