JEE Main 2024 · ChemistryNumerical answerNumerical valueMediumCalculation

JEE Main 9 April 2024, Shift 1, Chemistry Q81

Question 81 of 90 in this shift, Chemistry question 21 of 30, Section B.

Molarity (M) of an aqueous solution containing

x

g of anhyd.

\mathrm{CuSO_4}

in 500 mL solution at 32

^\circ

C is

2\times10^{-1}

M. Its molality will be ________

\times 10^{-3}

m. (nearest integer). [Given density of the solution = 1.25 g/mL]

Official answer

164

NTA final key.

Chapter: Solutions
Topic: Mole Concept
Idea tested: Molarity and Molality Interconversion

Same idea in other shifts

Asked 5× in all

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26 Aug 2021, Shift 1 · Q51An aqueous KCl solution of density 1.20 g mL $^{-1}$ has a molality of 3.30 mol kg $^{-1}$ . The molarity of the solution in mol L $^{-1}$ is…MediumNumerical value

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.