Test

Test on Friday:
gram molecular mass
% composition
Hydrates
% hydration
Mole
Molar volume for gases (1 mole = 22.4 L)
Formulas for conversion to moles:
mol = mass/gmm mol = liters/22.4 L gas @ STP mol = molecules/6.02 x 10^23
Empirical formulas
Determining empirical formulas from % composition
Determining molecular formula from empirical formula
Stoichiometry:

• using coefficient ratios
• mole-mole problems
• volume-volume problems
• mole-liter problems

Density: gases, liquids and solids (for gases use mole to get volume)
Table F
Table G