The mass fraction of solute is 0.12. What is the mass percentage?
Answer and explanation
Correct answer: 12%
The governing relationship is mass percentage = mass fraction × 100. Substituting the given value gives 0.12 × 100 = 12%. Hence, option A is correct. A mass fraction of 0.12 means 12 parts of solute in every 100 parts of solution. Option C forgets the conversion to percentage, option B shifts the decimal incorrectly, and option D is ten times too large.
Frequently asked questions
What is the correct answer to this question?
12%
Why is this the correct answer?
The governing relationship is mass percentage = mass fraction × 100. Substituting the given value gives 0.12 × 100 = 12%. Hence, option A is correct. A mass fraction of 0.12 means 12 parts of solute in every 100 parts of solution. Option C forgets the conversion to percentage, option B shifts the decimal incorrectly, and option D is ten times too large.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
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