HOW MUCH MOLARITY OF STANDARD CONCENTRATED ACIDS (Red Fuming Nitric Acid) AND FORMULA TO MEASURE THEM
HOW MUCH MOLARITY OF STANDARD CONCENTRATED
ACIDS
(Red Fuming Nitric Acid)
AND FORMULA TO MEASURE THEM
Following
Values are Required of concentrated solutions
:
Molecular
Formula
Molecular
Weight
Assay
or Purity of Acid
Weight
per ml of Acid
Formula:- 1000ml x Wt.per ml x Purity
of Conc. Solution
Molecular weight x 100
= ? M
Example :- For Conc. Red Fuming Nitric Acid
Following
Values are Required of concentrated solutions
:
Molecular
Formula = HNO3
Molecular
Weight = 63.01
Assay
or Purity of Compound = 90.0%w/w
Weight
per ml of compound = 1.50
Put
the given values in following formula
Formula:- 1000ml x Wt.per ml x Purity
of Conc. Solution
Molecular weight
x 100
= ? M
= 1000ml x 1.50 x 90.0
63.01 x 100
= 21.43 M
Concentrated
Red Fuming Nitric Acid is about 21.43M
21.43M = 1000 ml Conc.Red Fuming
Nitric Acid
For 1M
= 1000 ml Conc.Red Fuming Nitric Acid
21.43
= 46.66 ml Conc. Red Fuming Nitric Acid Required
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