13.7 Concentration: ppm and ppb

ppb is same but x109 instead of x106

• Because water has a density of 1.00 g/mL:
• 1 ppm (m/v) = 1 mg/L
• 1 ppb (m/v) = 1 μg/L

mass of solute

mass of solution

ppm (m/m) =

x 106

volume of solute

volume of solution

ppm (v/v) =

x 106

mass of solute (g)

volume of solution (mL)

ppm (m/v) =

x 106