November 30, 2015

Homework Help: chemistry- empirical formulas

Posted by princess on Wednesday, March 14, 2012 at 1:58pm.

Calculate the empirical formula of a molecule with the following percent compositions: 55.0% gallium (Ga) and 45.0% fluorine (F).
mass of 100g #of Moles in 100g
of the compound

Ga55.0% _____ ______

F45.0% ______ _______

c. Determine the molecular formula of a molecule having an empirical formula of NH2 and a molar mass of 32 g/mol.

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