Question: If 10 g of sugar is dissolved in 100 g of water, what is the mass percent of sugar in the solution? (2023)

Options:

1. 10%
2. 5%
3. 20%
4. 15%

Correct Answer: 10%

Exam Year: 2023

Solution:

Mass percent = (mass of solute / total mass of solution) x 100. Total mass = 10 g + 100 g = 110 g. Mass percent = (10 g / 110 g) x 100 = 9.09%, approximately 10%.