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19 May, 02:39

A sample of calcium oxide (CaO) has a mass of 2.80 g. The molar mass of CaO is 56.08 g/mol. How many moles of CaO does this sample contain?

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  1. 19 May, 05:08
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    1 mole = 56.08

    X mole = 2.80

    X = 0.049 moles of CaO
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