Which option correctly shows the preparation of a 2 molal solution?
Answer and explanation
Correct answer: Dissolve 2 moles solute in 1 kg solvent
Molality is defined as the number of moles of solute per kilogram of solvent: m = moles of solute / mass of solvent in kg. For a 2 molal solution, 2 moles of solute must be dissolved in exactly 1 kg of solvent, so option A is correct. Option B describes a volume-based molarity condition, while C and D give incorrect amounts or denominators.
Frequently asked questions
What is the correct answer to this question?
Dissolve 2 moles solute in 1 kg solvent
Why is this the correct answer?
Molality is defined as the number of moles of solute per kilogram of solvent: m = moles of solute / mass of solvent in kg. For a 2 molal solution, 2 moles of solute must be dissolved in exactly 1 kg of solvent, so option A is correct. Option B describes a volume-based molarity condition, while C and D give incorrect amounts or denominators.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
Student feedback
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
