A solution contains 0.6 mole solute and has molarity 2 M. What is the volume in mL?
Answer and explanation
Correct answer: 300 mL
Molarity follows M = n/V, where V must initially be expressed in litres. Hence V = n/M = 0.6 mol ÷ 2 mol L−1 = 0.3 L. Converting to millilitres gives 0.3 × 1000 = 300 mL, so option A is correct. The 600 mL distractor comes from multiplying instead of dividing, and 200 mL reverses the numerical relationship.
Frequently asked questions
What is the correct answer to this question?
300 mL
Why is this the correct answer?
Molarity follows M = n/V, where V must initially be expressed in litres. Hence V = n/M = 0.6 mol ÷ 2 mol L−1 = 0.3 L. Converting to millilitres gives 0.3 × 1000 = 300 mL, so option A is correct. The 600 mL distractor comes from multiplying instead of dividing, and 200 mL reverses the numerical relationship.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Some Basic Concepts of Chemistry. Topic: Mole concept and molar mass.
