1.How many moles of atom does 136.9g of iron metal contain?(Fe=55.85gmol-1)
2. How many
a) moles of oxygen (O2)
b) oxygen (O2) molecules
c) oxygen atoms (O) are contained in 40.0g of oxygen gas (diaoxygen) at 25°C ? (O=16)?
3 Answers Available
Asked by Hafeez on 15th November, 2019
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