Molecular Fractions
a: Empirical formula ~
b: lowest common denominator
What: "an empirical formula is like the lowest common denominator. Eg CH3 is the empirical formula C2H6
is not - it is a molecular formula and as such has a specific mass. (in this case 30 g 2 x 12 + 1 x 6) C3H9 is also a molecular formula and has a mass of 45g (12 x 3 +1 x 9)"
Useful?
Writer: Mr Wallis
LCC:
Where:
Date: Aug 9 2013 3:20 PM
# 3564 Critique Analogy