First slide

Concentration methods

Question

‘X’ ml of 0.666 M Phosphoric acid completely neutralizes 200 ml of 2 M Magnesium hydroxide solution. The value of ‘X’ is

Moderate

A

400
B

600
C

300
D

900

Solution

$V_{a} N_{a} = V_{b} N_{b} V (0.666) 3 = 200 (2) 2; V = 400 mL;$

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