If 5 g glucose is dissolved to make 100 mL of solution, what is the mass–volume percentage?
Answer and explanation
Correct answer: 5%
Mass–volume percentage is calculated using (mass of solute in grams ÷ volume of solution in millilitres) × 100. Substitution gives (5 ÷ 100) × 100 = 5%. Therefore option A is correct. Because the final solution volume is exactly 100 mL, the numerical value in grams is equal to the percentage value. The other options result from incorrect scaling or arithmetic.
Frequently asked questions
What is the correct answer to this question?
5%
Why is this the correct answer?
Mass–volume percentage is calculated using (mass of solute in grams ÷ volume of solution in millilitres) × 100. Substitution gives (5 ÷ 100) × 100 = 5%. Therefore option A is correct. Because the final solution volume is exactly 100 mL, the numerical value in grams is equal to the percentage value. The other options result from incorrect scaling or arithmetic.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
