Assertion: abundance | /r/HasProperty | measured in two ways
Facets:
value: by the mass-fraction
type: OTHER
value: by the volume-fraction
type: MANNER
value: by fraction of molecules in gases
type: OTHER
Source sentences:
text: For example, the abundance of oxygen in pure water can be measured in two ways: the mass fraction is about 89%, because that is the fraction of water's mass which is oxygen.
text: Abundance is measured in one of three ways: by the mass-fraction (the same as weight fraction); by the mole-fraction (fraction of atoms by numerical count, or sometimes fraction of molecules in gases); or by the volume-fraction.