what is the mass of hydrogen and oxygen when 100 grams of water is decomposed? class 9 Atoms and Molecules
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Answer:
89 g Oxygen and 11 g Hydrogen
Explanation:
According to law of definite composition, all the sample of any chemical compound has the same composition of elements by mass.
In H2O, molecular mass of hydrogen = 1g/mol
and molecular mass of oxygen = 16g/mol
Hence, water has chemical composition of 8:1 of oxygen and hydrogen respectively by mass.
If 100grams of water is decomposed then 89grams of oxygen and 11grams of hydrogen are obtained.
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