Name: ________________________ Group: _____
Date: _____________________
Grade 10 Science
ppm Calculation Examples
ppm in mass
1. Solution A has a concentration of 0.65 mg/kg and Solution B has a concentration of 0.225
g/kg. What are their concentrations in ppm?
2. An 800 g sample of soil from a yard contains 5.3 g of pollutant. What is the concentration of
pollutant in ppm?
3. Another 650 g sample of soil has a pollutant concentration of 7 ppm. How much pollutant is in
the soil sample?
4. Whole wheat bread has 850 ppm of magnesium. How much magnesium is in 1 slice of bread,
if one slice has a mass of 30 g?
Name: ________________________ Group: _____
Date: _____________________
ppm in aqueous solutions
1. The Gatorade “Thirst Quencher” has approximately 51 mg/L of potassium. What is the
concentration of potassium in ppm?
2. A solution has a concentration of 1.25 g/L. What is its concentration in ppm?
3. A solution has a concentration of 0.5 mg/mL. What is its concentration in ppm?
4. Water in a lake is contaminated. A 50 mL sample has 4.8 mg of contaminant. What is the
concentration in ppm?