What is the mass of:a) 0.2 mole of oxygen atoms ?(b) 0.5 mole of water molecules ?
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Answer:
What is the mass of : (a) 0.2 mole of oxygen atoms? (b) 0.5 mole of water molecules? Ans. ∴ 0.2 mole of oxygen atoms = 16 × 0.2 = 3.2 g (b) 1 mole of water molecules = 18 g ∴ 0.5 mole of water molecules = 18 × 0.5 = 9 g 10.
Explanation:
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Explanation:
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➡️(a) The mass of 1 mole of oxygen atoms = 16 g
Thus, the mass of 0.2 mole of oxygen atoms = 16 × 0.2 = 3.2 g
➡️(b) The mass of 1 mole of water molecules = 18 g
Thus, the mass of 0.5 mole of water molecules = 18 × 0.5 = 9.0 g
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