S3U

Science / Chemistry / Grade 9 / sk9cj

Use Total Solution Mass as the Denominator - Practice 2

Mass percent is solute mass divided by total solution mass, multiplied by 100.

All worksheets
5 questions0m 0s
Learn the skill

Mass percent is solute mass divided by total solution mass, multiplied by 100. The denominator includes both solute and solvent, not only the solvent. These are ideal bookkeeping examples with no loss.

Worked example

10 g solute plus 90 g solvent makes 100 g solution, so the solute is 10% by mass.

10 g solute plus 90 g solvent makes 100 g solution, so the solute is 10% by mass.
10 g solute plus 90 g solvent makes 100 g solution, so the solute is 10% by mass.
Question 1 Paper solution 6 has 14 g solute and 186 g solvent. What is the solute mass percent? Enter the number without %.
Question 2 Paper solution 7 has 16 g solute and 184 g solvent. What is the solute mass percent? Enter the number without %.
Question 3 Paper solution 8 has 18 g solute and 182 g solvent. What is the solute mass percent? Enter the number without %.
Question 4 Paper solution 9 has 20 g solute and 180 g solvent. What is the solute mass percent? Enter the number without %.
Question 5 Paper solution 10 has 22 g solute and 178 g solvent. What is the solute mass percent? Enter the number without %.