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View Full Version : What is the mass percent of copper in a compound?

Irene87
Oct 16, 2011, 01:26 PM
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
Oct 16, 2011, 10:58 PM
\text{Percent mass of copper} = \frac{\text{Mass of copper}}{\text{Total mass of compound}}\ \times\ 100%