First slide

Concentration methods

Question

1 litre of 0.5 M Phosphorous acid is diluted to 5 litre solution. Normality of the resultant solution is ---- N

Moderate

A

0.1
B

0.4
C

0.5
D

0.2

Solution

$V_{1} N_{1} = V_{2} N_{2}; 1 (0.5) 2 = 5 N_{2}; N_{2} = 0.2 N;$

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