JEE Main 2020 — Some Basic Concepts Of Chemistry Question with Solution
From: JEE Main 2020 (Online) 9th January Morning Slot
Question
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)
(Molecular Weight of HNO3 = 63)
Enter your answer
Show full solutionCorrect answer: 14
Correct answer
14
Step-by-step explanation
%w/w = 63%
dsolution = 1.4 g/ml
Molarity =
= = 14 M
dsolution = 1.4 g/ml
Molarity =
%w/w dsolution
Moleculer weight of Solute
. 10
= = 14 M
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