Chemistry-Please help

How many air molecules are in a 12.0*12.0*10.0 ft room? Assume atmospheric pressure of 1.00 atm, a room temperature of 20.0 degree Celsius , and ideal behavior.

Volume conversion:There are 28.2 liters in one cubic foot.

asked by Rose
  1. You need to

    1. calculate the volume of the room

    2. Convert the volume to litres

    3. Use PV=nRT to calculate the number of moles of gas (n). Remember to use the correct value for R and convert temperature to K.

    3. multiply the number of moles (n) by Avogadros' number (6.023 x 10^23) to get the number of air molecules.

    posted by Dr Russ
  2. 6.97*10^21

    posted by Anonymous
  3. 8.89*10^26 is the correct answer

    posted by Anonymous

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