Question:
\(40%\) by weight solution will contain how much mass of the solute in 1L solution, density of the solution is \(1.2\mathrm{g / mL}\)?
\(40%\) by weight solution will contain how much mass of the solute in 1L solution, density of the solution is \(1.2\mathrm{g / mL}\)?
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Always convert volume to mL when density is given in g/mL.
Updated On: Apr 20, 2026
- 480 g
- 48 g
- 38 g
- 380 g
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept:
Mass of solution = Volume × Density. Mass of solute = (% by weight/100) × Mass of solution.
Step 2: Detailed Explanation:
Volume = 1 L = 1000 mL. Density = 1.2 g/mL.
Mass of solution = \(1000 \times 1.2 = 1200\) g.
Mass of solute = \(40% \times 1200 = \frac{40}{100} \times 1200 = 480\) g.
Step 3: Final Answer:
480 g
Mass of solution = Volume × Density. Mass of solute = (% by weight/100) × Mass of solution.
Step 2: Detailed Explanation:
Volume = 1 L = 1000 mL. Density = 1.2 g/mL.
Mass of solution = \(1000 \times 1.2 = 1200\) g.
Mass of solute = \(40% \times 1200 = \frac{40}{100} \times 1200 = 480\) g.
Step 3: Final Answer:
480 g
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