- is a measure of mass per volume
- measure in G/L or G/ML
How many moles are in 11.5 mL of water?
11.5 mL x 1mol/ 18g = .64 mol
Density of gases (STP)
- The density of gases varies with temperature
- At STP we can find density by: MM/ 22.4 L/mol
- molar mass/ molar volume
- density of gases 02 @ STP