treasure19 treasure19
  • 17-01-2017
  • Chemistry
contestada

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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kdc624 kdc624
  • 17-01-2017
19.512 
i hope this helps

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