Question

Express ppm and ppb in the form of wt/wt, wt/volume, volume/volume forms

Answer 1

- ppm (parts per million) in wt/wt form: 1 part of solute per 1,000,000 parts of solution
- ppm in wt/volume form: 1 part of solute per 1,000,000 parts of solution
- ppm in volume/volume form: 1 part of solute per 1,000,000 parts of solution

- ppb (parts per billion) in wt/wt form: 1 part of solute per 1,000,000,000 parts of solution
- ppb in wt/volume form: 1 part of solute per 1,000,000,000 parts of solution
- ppb in volume/volume form: 1 part of solute per 1,000,000,000 parts of solution