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22-03-2022
Chemistry

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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? 0.0499 moles 20.0 moles 58.9 moles 157 moles

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Hippors Hippors

22-03-2022

Answer:

0.0499 moles

Explanation:

56.08g => 1 mol

2.80g => y mol

Y = 2.80/56.08 = 0.0499 moles

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