Glossary 2 Chemistry Solutions Chapter

Solute: the substance dissolved; the substance present in a solution in the lesser amount.

Solvent: the dissolving medium; the substance in a solution in the greater amount.

Solution: a homogeneous mixture of two or more substances.

volume percent
Vol% = 100*volume of solute/(volume of solute + volume of solvent)

mass percent
mass % = 100*(mass of solute)/(mass of solute + mass of solvent)

parts per million
ppm = 10^6*(mass of solute)/(mass of solute + mass of solvent)

molality
m = number of moles of solute/kilograms of solvent

molar concentration or moles per liter or Molarity
M = number of moles of solute/liters solution

Mole fraction
Xy (y is subscript) = number of moles of y in mixture/totals moles in mixture