1. Empirical and Molecular Formulas
Objectives:
6.5 Determining the empirical or molecular formula for a compound using percent composition data

2. Calculating Molecular Formula
Experimentally determined molar mass = n mass of empirical formula
Molecular formula = (empirical formula) x n
(This means all subscripts in the empirical formula must be multiplied by n to get the molecular formula.)
Example: P. 335 (51, 52)
Individual Practice: P.335 (53)
Assignment : Moles Problem Set Worksheet