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17-01-2017
Chemistry

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how many moles does 205g of helium, He contains ?

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Аноним Аноним

17-01-2017

Moles = weight in g / atomic weight So, moles in 40 g of He = 40 / 4 = 10 moles.

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17-01-2017

19.512
i hope this helps

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