Chemistry, 06.09.2021 22:20 laylay120

Consider some unknown compound containing only copper and oxygen. In order to determine the empirical formula, a sample of the compound is decomposed into the elements copper and oxygen. The original sample had a mass of 0.6349g prior to decomposition. After the reaction, 0.5066g of pure copper solid was recovered. How many moles of copper were initially in the sample?

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