If 25 g glucose is dissolved in 225 g water, what is the mass percentage of the solution?
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Answer and explanation
Correct answer: 10 percent
Mass percent uses the total solution mass. Total mass = 25 g glucose + 225 g water = 250 g. Therefore, mass percent of glucose = 25/250 × 100 = 10%. Option A is correct. Dividing by the water mass alone would give 11.1%, but that would represent a different ratio, not mass percent of the solution.
Frequently asked questions
What is the correct answer to this question?
10 percent
Why is this the correct answer?
Mass percent uses the total solution mass. Total mass = 25 g glucose + 225 g water = 250 g. Therefore, mass percent of glucose = 25/250 × 100 = 10%. Option A is correct. Dividing by the water mass alone would give 11.1%, but that would represent a different ratio, not mass percent of the solution.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
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