What is percent composition in chemistry?

1 Answer
anor277
Jul 3, 2018

#"% composition"="quantity of stuff"/"quantity of stuff + quantity of solvent"xx100%#

Explanation:

Most of the time we quote a percentage by mass....which is defined by the given quotient....i.e. #"weight"/"weight"xx100%#. The term #"part per million"# is for trace quantities in aqueous solution...and refers to the quotient...#"milligrams of solute"/"litres of solution"#...where #1*L# #=# #1000xx1000*mg=10^6*mg#, i.e. one million milligrams....

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