Verified Solution • 2025–26 Session moderate

QJEEM20Che858: JEE Main 2020 Chemistry - Class 11 JEEM20Che858 Solution: The molarity of HNO 3 in a sample which has density 1.4 g/mL…

The molarity of HNO3 in a sample which has density 1.4 g/mL and mass percentage of 63% is _____.
(Molecular Weight of HNO3 = 63)

Step-by-Step Verified Solution

%w/w = 63%

dsolution = 1.4 g/ml

Molarity =
%w/w ×\times dsolution
Moleculer weight of Solute
. ×\times 10

= 63×1.4×1063{{63 \times 1.4 \times 10} \over {63}} = 14 M

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