Chemistry › Section C · Composition of substances and solutions › Topic C.4
Other concentration units
Molarity is the chemist's everyday unit, but product labels, medicine, water-quality limits and some physical laws use others. Each one answers a slightly different question about how much solute is present, and you need to be able to read and convert all of them.
In this topic
- Why more than one unit?
- Mass percentage
- Worked example: salt in seawater
- Volume and mass-volume percentages
- Parts per million and per billion
- Worked example: arsenic in a well
- Molality
- Mole fraction
- Worked example: antifreeze
- Common mistakes to avoid
- Key takeaways
This topic is part of Wuanberri Pro. Checking your access…