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A sample of a compound made entirely from copper and oxygen was found to have a total mass of 0.1431g The mass of the copper In the compound was found to be 0.1271g. Calculate the number of moles of copper in the sample.

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mylifeizamess62
Number of moles of Cu in 63.546 g is 1 mole

1 / 63.546 = 0.0157366317

Number of moles in 1 g of Cu is 0.0157366317

0.0157366317 x 0.1431

0.002251912 moles will be the answer

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