Table of contents

1. Intro to General Chemistry3h 48m
2. Atoms & Elements4h 16m
3. Chemical Reactions4h 10m
4. BONUS: Lab Techniques and Procedures1h 38m
5. BONUS: Mathematical Operations and Functions48m
6. Chemical Quantities & Aqueous Reactions3h 53m
7. Gases3h 49m
8. Thermochemistry2h 37m
9. Quantum Mechanics2h 58m
10. Periodic Properties of the Elements3h 9m
11. Bonding & Molecular Structure3h 29m
12. Molecular Shapes & Valence Bond Theory1h 57m
13. Liquids, Solids & Intermolecular Forces2h 23m
14. Solutions3h 1m
15. Chemical Kinetics2h 53m
16. Chemical Equilibrium2h 29m
17. Acid and Base Equilibrium5h 1m
18. Aqueous Equilibrium4h 47m
19. Chemical Thermodynamics1h 50m
20. Electrochemistry2h 42m
21. Nuclear Chemistry2h 36m
22. Organic Chemistry5h 7m
23. Chemistry of the Nonmetals2h 39m
24. Transition Metals and Coordination Compounds3h 16m

14. Solutions

Parts per Million (ppm)

General Chemistry

14. Solutions

Parts per Million (ppm)

Previous problemNext problem

Struggling with General Chemistry?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

What is the concentration of 0.5 g KCl in 3000 g of water in parts per million (ppm)?

166.67 ppm

100 ppm

200 ppm

150 ppm

Previous problemNext problem

Verified step by step guidance

Understand that parts per million (ppm) is a way of expressing very dilute concentrations of substances. It is equivalent to milligrams of solute per kilogram of solution.

Convert the mass of KCl from grams to milligrams. Since 1 gram is equal to 1000 milligrams, multiply 0.5 g by 1000 to get the mass in milligrams.

Recognize that the mass of the solution is the sum of the mass of the solute (KCl) and the solvent (water). In this case, the mass of the solution is approximately equal to the mass of the water, 3000 g, since the mass of KCl is relatively small.

Convert the mass of the solution from grams to kilograms. Since 1 kilogram is equal to 1000 grams, divide 3000 g by 1000 to get the mass in kilograms.

Calculate the concentration in ppm by dividing the mass of KCl in milligrams by the mass of the solution in kilograms. This will give you the concentration in parts per million (ppm).