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-   -   Help me solve my chem. Prob. (https://www.askmehelpdesk.com/showthread.php?t=658066)

  • May 7, 2012, 11:18 AM
    poiuyu
    Help me solve my chem. Prob.
    A sample of Neon gas has a volume of 11.45L at 25C and a pressure of 1.28atm. Calculate the number of moles of Neon gas present in the gas sample.
  • May 14, 2012, 05:32 PM
    Chic_Bowdrie
    Quote:
    Originally Posted by poiuyu View Post
    A sample of Neon gas has a volume of 11.45L at 25C and a pressure of 1.28atm. Calculate the number of moles of Neon gas present in the gas sample.
    Neon is 22.4 L/mole at standard temperature and pressure. So the ideal gas law, PV=nRT can be used to calculate how many moles 11.45 L would be under the conditions given. 11.45L/22.4L x 1.28atm/1atm x 273/298 = 0.6 moles

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