Page 70 - Teacher Preview Copy

Worksheet 26 . Topic 7

Set D: Part per million calculations Objective: to test your understanding of part per million and
your ability to solve part per million related problems.

Calculate part per million (ppm) or grams of solute based on the information given about the solution.
Use space to the right to write equation, show setup and solve the problem.
Include the appropriate unit in your final answers. Write answers in the boxes below

21. What is the part per million concentration of
a 2000 g solution containing 10g of the solute?

22. A 500 gram solution contains 0.02 gram of
Teacher Preview Copy
Teacher Preview Copy
solute. What is the concentration of the
solution in part per million?

23. A 1000 gram sample of CO2(aq) solution
contains 0.5 gram of CO2. What is the
concentration of the solution in
part per million?

24. What is the part per million concentration of
a 2500 gram of KNO3 solution containing
100 grams of the solute?

25. A 3800 gram of fish tank water contains
2.7 x 10 gram of dissolved oxygen. What
-2
is the part per million concentration of Need help? Study Book pg 156 Set 24
dissolved oxygen in the fish tank water?

26. How many grams of O2 will be in a 1000 g
of 2 ppm O2 solution?

27. A 2200 gram NH3(aq) solution has a
part per million concentration of 0.5 ppm.
How many grams of NH3 are in this solution?

28. What is the total number mass of NH4Cl(s)
found in a 1500 gram of a 1.5 ppm solution?

60 Copyright © 2010 E3 Scholastic Publishing. All Rights Reserved. Survivingchem.com