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    Irene87's Avatar
    Irene87 Posts: 1, Reputation: 1
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    Oct 16, 2011, 01:26 PM
    What is the mass percent of copper in a compound?
    A pure compound contains only copper and oxygen. What is the mass percent of copper in the compound if a sample contains 4.441g copper and 0.559g of oxygen?
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    Oct 16, 2011, 10:58 PM
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