how many Fe atoms and how many moles of Fe atoms are in 500.g of iron?

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25-08-2017
Chemistry

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how many Fe atoms and how many moles of Fe atoms are in 500.g of iron?

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LeChatNoir LeChatNoir · Answer 1 · 2017-08-25T21:03:23+02:00

LeChatNoir LeChatNoir

25-08-2017

mFe: 56 g/mol
..........

56g ----- 1 mol
5g ------- X
X = 5/56 = 0,089 moles of Fe

56g ----- 6,02×10²³ atoms
5g ------- X
X = (5×6,02×10²³)/56
X = 0,5375×10²³ = 5,375×10²² atoms of Fe

:•)

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