1.

Concentrated nitric acid used as laboratory reagent is usually 69% by mass of nitric acid. Calculate the volume of the solution which contains "23 g HNO"_(3). (The density of the concentrated nitric acid solution is "1.41 g cm"^(-3)).

Answer»


Solution :`"Conc. Of HNO"_(3)="69 G in 100 g of solution = 69 g in 100/1.41 CM"^(3),"i.e" 70.92cm^(3)`
`THEREFORE"23 g HNO"_(3)" will be present in solution "=(70.92)/(69)xx23= 23.6cm^(3)`


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