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Originally Posted by JustJess
Oh, crapola, really???
Okay, I'm going to go check that out. You have my thanks in superfluous amounts! :*:*
Okay, hang on: so 1 mole of zinc = 65.38 * 6.022*10^23 ?
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One mole of Zn is 6.022*10^23 atoms of Zn and it weighs 65.38 grams.
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Originally Posted by JustJess
So. If the measured amount of zinc (reacted) was 0.86g, the mole of that would be 0.86g/65.409g? or is 65.409/0.86? Or neither?
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And this is where unit algebrae is your friend. You have g (measured weight)and g/mol (atomic weight) and you want mol. So you take the g and divide it with g/mol to get mol. x/(x/y)=y