Q51.An 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 molL−1 is____.(The Nearest integer) [ Molar mass of KCl = 74. 5 g]
What This Question Tests
This numerical problem requires converting between molality and molarity using the density of the solution and molar mass of the solute.
Concepts Tested
Formulas Used
Molarity = moles of solute / volume of solution (L)
Molality = moles of solute / mass of solvent (kg)
Density = mass / volume
📚 NCERT Sections This Tests
1.4 — Concentrated Nitric Acid Used In Laboratory Work Is 68% Nitric Acid By Mass In
Chemistry Class 11 · Chapter 1
1.4 Concentrated nitric acid used in laboratory work is 68% nitric acid by mass in aqueous solution. What should be the molarity of such a sample of the acid if the density of the solution is 1.504 g mL–1? 27 Solutions Reprint 2025-26
2.8 — The Conductivity Of 0.20 M Solution Of Kcl At 298 K Is 0.0248 S Cm–1. Calculate
Chemistry Class 11 · Chapter 2
2.8 The conductivity of 0.20 M solution of KCl at 298 K is 0.0248 S cm–1. Calculate its molar conductivity.
1.3 — Define The Following Terms:
Chemistry Class 11 · Chapter 1
1.3 Define the following terms: (i) Mole fraction (ii) Molality (iii) Molarity (iv) Mass percentage.
📋 Question Details
- Chapter
- Solutions
- Topic
- Concentration terms
- Year
- 2021
- Shift
- 26 Aug Shift 1
- Q Number
- Q51
- Type
- Numerical
- NCERT Ref
- Class 12 Chemistry Ch 2: Solutions
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