Science
Concentration.
Definition
Concentration measures the amount of solute dissolved in a given amount of solution or solvent. Common units include molarity (mol/L), molality (mol/kg solvent), percent composition, and parts per million (ppm).
Examples
Real-world.
- 1 A 1 M NaCl solution contains 1 mole of sodium chloride per liter of solution
- 2 Blood glucose concentration is normally about 70-100 mg/dL
- 3 Environmental scientists measure pollutant levels in parts per million or parts per billion
Key Fact
Molarity (M) = moles of solute รท liters of solution.