If the solubility of a solute is S, find its percentage by weight?

1 Answer
Feb 22, 2018

Answer:

#"% by mass" = S/(100 +S)#

Explanation:

If the solubility is #S#, there are #S# g solute in 100 g solvent.

#"Total mass of solution" = (S + 100)color(white)(l) "g"#

#"% by mass" = "mass of solute"/"mass of solution" × 100 % = (S color(red)(cancel(color(black)("g"))))/((S+100) color(red)(cancel(color(black)("g")))) × 100 %#

#"% by mass" = S/(100 +S)#