What is solute concentration?

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Answer 1 · 2018-08-12T09:21:19

Well, this is a measure of the amount of solute in a given quantity of solution....

And there are several ways of expressing concentration...

#"Molarity"="Moles of solute"/"Volume of solution"#

#"Molality"="Moles of solute"/"Kilograms of solvent"#

Now at LOW concentrations, generally, #"molarity"-="molality"#...at higher concentrations (and different temperatures), the values diverge...

#"Percentage by mass"="Mass of solute"/underbrace"Mass of solution"_"mass of solute + mass of solvent"xx100%#..

You have to be able to interpret which concentration is quoted, and which is required...

There is also #chi_"the mole fraction"="Moles of solute"/"Total moles in solution"#