Since the formula is Fe2O3, the molar mass is 2*56 : 3*16 = 112+48 = ____
so, what do you think?
Given that the molecular mass of iron is 56 and that of oxygen is 16, how many moles of iron3 oxide will be contained in 1kg of the compound?
3 answers
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the molar mass is 160
so, 1kg = 1000g = 1000/160 = 6.25 moles
so, 1kg = 1000g = 1000/160 = 6.25 moles
1 answer