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Standard IX
Chemistry
Atomic Mass and Atomic Mass Unit
What weight o...
Question
What weight of oxygen gas will number of molecules as 56g of nitrogen gas? How?
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Solution
Atomic mass of N2(nitrogen gas) is 28.
so 56 gram of N2 contains
2 mole N2 =2× 6.022×10^23
so we also need 2 mole of oxygen (O2)
as 1 mole oxygen=32 grams
so 2 mole oxygen=64 grams
hennce weight of oxygen
is 64 grams
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