Calculating Percentage Composition P.305-307 % composition of an element = mass of element x 100% mass of compound 1.A compound is formed when 9.03 g of Mg combines with 3.48 g of N. What is the percent composition of the compound? 2.When a 14.2 g sample of mercury(II)oxide is decomposed into its elements by heating, 13.2 g of mercury is obtained. What is the percent composition of the compound? 3.Calculate the percentage composition of dicarbon hexahydride, sodium hydrogen sulfate and phosphoric acid.
Empirical Formula – The Simplest Formula P.309-310 Convert % grams (Assume 100 g) Convert grams moles Divide each mole quantity by the smallest mole quantity Cant have decimals
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