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Abhishek Anand

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2 years ago
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What is the mass of        (a) 0.2 mole of oxygen atoms?        (b) 0.5 mole of water molecules?

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Muskan Anand

2 years ago

(a) Mole of Oxygen atoms = 0.2 mole                 Molar mass of oxygen atoms = 16 g                 Mass of oxygen atoms = 16 × 0.2 = 3.2 g        (b) Mole of water molecule = 0.5 mole                 Molar mass of water molecules = 2 × 1 + 16 = 18 g                 Mass of H2O = 18 × 0.5 = 9 g

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