bewellplus.gsu.edu
NoMacros NoMacros
  • 05-12-2016
  • Chemistry
Answered

How many atoms are in 131.97 liters of water vapor at STP?


A.) 6.023 × 1023


B.) 3.54846 × 1024


C.) 3.548 × 1024


D.) 1.0645 × 1025

Verified Answer :

Willchemistry
Willchemistry Willchemistry
  • 05-12-2016

1 mole --------- 22.4 L at ( STP )
? moles ------- 131.97 L

131.97 x 1 / 22.4 => 5.8915 moles 

Therefore:

1 mole ------------- 6.02x10²³ atoms
5.8915 moles ----- ??

5.8915 x ( 6.02x10²³) / 1 =

= 3.5448x10²⁴ atoms

hope this helps!

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