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Chemistry
A substance contains just copper and oxygen. Analysis shows that a 12.5 g sample contains 11.1 g of copper, and 1.4 g of oxygen. What is the formula of this red powder?
Chemistry
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Answered by PhD
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Chemistry
Calculate the mass of NaOH required to prepare 88.25 mL of 0.155M solution.
Chemistry
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Answered by Master
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