The molarity of H N O 3 in a sample which has density 1.4 g / m L and mass percentage of 63 % is ________ (Molecular Weight of H N O 3 = 63 )

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Question: Answered & Verified by Expert

The molarity of

{H N O}_{3}

in a sample which has density

1.4 g / m L

and mass percentage of

63 %

is ________ (Molecular Weight of

{H N O}_{3} = 63

)

ChemistrySome Basic Concepts of ChemistryJEE MainJEE Main 2020 (09 Jan Shift 1)

Solution:

2784 Upvotes Verified Answer

The correct answer is: 14

63 % \frac{w}{w} ⟶ H N O_{3}

solution

M = \frac{63 \times 1.4}{63 \times 100} \times 1000 m o l e / L

M = 14 m o l e / L

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