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What is the mass of oxygen contained in 72g of pure water?(*hint:Find % composition of oxygen in water)
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What is the mass of oxygen contained in 72g of pure water?(*hint:Find % composition of oxygen in water)

User Daymannovaes
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1 Answer

5 votes

Answer:

64 grams of oxygen

Step-by-step explanation:

Water has a molar mass of 18.0 grams/mole. Oxygen, at 16 g/mole, accounts for 16/18 or 88.89% of the total.

72 grams of water would this contain (72g)*(0.88.89) = 64 grams of oxygen.

User Kaese
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