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1.2.5 Determine the empirical formula from the percent composition or from other data IB Chemistry

Find the MOLES of each element and then simplify the ratio between them. Eg 24g of Mg is combusted in oxygen to produce 40g of magnesium oxide. What is the empirical formula of this product? Mg 24g / 24g/mol O (40g-24g) / 16g/mol = MgO
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