First slide

Concentration methods

Question

1 litre of 0.4 N Phosphorous acid is diluted to 0.025 M solution. Final volume of the solution is ------- litres

Moderate

A

4
B

8
C

6
D

12

Solution

$V_{1} N_{1} = V_{2} N_{2}; 1 (0.4) = V_{2} (0.025) 2; V_{2} = 8 litres;$

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