What is percent composition in chemistry?

1 Answer
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....