JEE Main 2020ChemistrySome Basic Concepts of ChemistryMediumNumerical

JEE Main 2020Some Basic Concepts of Chemistry Question with Solution

JEE Main 2020 (09 Jan Shift 1)

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 )

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Show full solutionCorrect answer: 14
Correct answer
14

Step-by-step explanation

63%wwHNO3 solution
M=63×1.463×100×1000mole/L
M=14mole/L

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About this question

This is a previous-year question from JEE Main 2020, covering the Some Basic Concepts of Chemistry chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.