﻿ Calculate the concentration of nitric acid in moles per litre in a sample which has a density, 1.41 g ml–1and mass per cent of nitric acid in it being 69%. : Kaysons Education

# Calculate The Concentration Of Nitric Acid In Moles Per litre in A Sample Which Has A Density, 1.41 G Ml–1and Mass Per Cent Of Nitric Acid In It Being 69%.

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## Question

### Solution

Correct option is

15.44 M

Mass percent of 69% means that 100 g of nitric acid solution contain 69 g of nitric acid by mass.

Molar mass of nitric acid (HNO3) = 1 + 14 + 48 = 63 g mol–1

∴

Volume of 100 g nitric acid solution =

∴         Conc. Of HNO3 in moles per litre

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