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What is the weight of:
i) 1 mole of oxygen atoms?
ii)
i) 3 moles of iron atoms?
3 ?
iii) 20 moles of calcium carbonate?


Sagot :

towl35

Answer:

Oxygen = 15.999 g/mol

Iron = 3 × 55.845 = 167.535 g/mol

CaCO3 = 20 × 100.0869 = 2001.738 g/mol