Answer:
5.23 moles
Step-by-step explanation:
How many moles of iron are present in 3.15 × 10^24 atoms of iron?
1 mole has 6.02 X 10^23 particles
so
3.15X10^ 24 atoms =( 3.15 X 10^24)/(6.02 X 10^23) =(3.15/6.02 )X 10 =
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