A 500 g solution contains 50 g solute. What is the mass percentage?
Answer and explanation
Correct answer: 10 percent
The governing formula is mass percentage = (mass of solute / mass of solution) × 100. Using the given values, mass percentage = (50 g / 500 g) × 100 = 0.10 × 100 = 10%. Thus option A is correct. The denominator must be the total solution mass, not the solvent mass or solute mass. Options B, C, and D arise from using an incorrect ratio or omitting the correct scale factor.
Frequently asked questions
What is the correct answer to this question?
10 percent
Why is this the correct answer?
The governing formula is mass percentage = (mass of solute / mass of solution) × 100. Using the given values, mass percentage = (50 g / 500 g) × 100 = 0.10 × 100 = 10%. Thus option A is correct. The denominator must be the total solution mass, not the solvent mass or solute mass. Options B, C, and D arise from using an incorrect ratio or omitting the correct scale factor.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
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