Calculate the concentration of nitric acid in moles per litre in a sample which has a density, 1 41 g - Chemistry - Some Basic Concepts of Chemistry

Question

Calculate the concentration of nitric acid in moles per litre in
a sample which has a density, 1 41 g mL–1 and the
mass per cent of nitric acid in it being 69%

Prerna Bansal · Accepted Answer

Hi,
Mass percent of HNO3=69%
Hence mass of HNO3 in the solution is 69g
Mass of water=100-69=31g
Number of moles of HNO3 =69/63=1 09moles
Density=mass/volume
Volume=mass/density
=100/1 41=70 9ml
Concentration (Molarity) = number of moles of solute/volume of
the solution
= (1 09/70 9)×100
= 1 5M
Hope it helps
Cheers!

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

Calculate the concentration of nitric acid in moles per litre in a sample which has a density, 1.41 g mL^–1 and the mass per cent of nitric acid in it being 69%