((w/w)%) Mass percentages express the concentration of a component in a mixture or an element in a compound. For example, household bleach is 5.25% NaOCl by mass, meaning that every 100 g of bleach contains 5.25 g of NaOCl. Mass percentage can be calculated as 100% times the mass of a component divided by the mass of the mixture containing the component.
MASS PERCENTAGE
Meaning of MASS PERCENTAGE in English
General chemistry English glossary. Английский глоссарий общей химии. 2012