empirical formula


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)"

Writer: Mr Wallis
Date: Aug 9 2013 3:20 PM

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