irelandm irelandm
  • 10-01-2016
  • Chemistry
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What is the total number of molecules in 11.2 liters of N2 gas at STP

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Willchemistry
Willchemistry Willchemistry
  • 10-01-2016
molar volume at STP = 22,4 L

1 mole -------------- 22,4 L
 x mole -------------- 11,2 L

x = 11,2 / 22,4

x =  0,5 moles of N2

1 mole --------------- 6,02.10²³ molecules
0,5 moles ------------ y molecules

y = 0,5 . 6,02.10²³

y = 3,01.10²³ molecules 

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