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Two formulal to calculate number of mill...

Two formulal to calculate number of milli equivalkents (mlQ)
Numbr of miliequivalents `=("weight")/("GEW")xx1000`
Numbr of milliequivalents= volume in ml `xx` Normality of solution
0.09 grams of dibasic acid neutralise 40 ml of `N/20` NaOH solution. Molecular weight of acid is

A

90

B

45

C

180

D

60

Text Solution

Verified by Experts

The correct Answer is:
A
No. of Meq of dibasic acid
= `(0.09)/("GEW of di basic acid")xx1000`
No. of meQ of `NaOH=40xx(1)/(20)`
No. of meQ of dibasic acid = No. of meQ of `NaOH(0.09)/("GEW")xx1000=40xx(1)/(20)`
GEW of acid = 45g, Eq. wt acid = 45
mol wt of dibasic acid = `45xx2=90`
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