140% C Search 321700 Print HCalculator Periodic Table Incorrect uestion 10 of 21

Question

140% C Search 321700 Print HCalculator Periodic Table Incorrect uestion 10 of 21 Incorrect Map Sapling Learning An open flask sitting in a looks empty, but we know that is with a mixture of gases air. flask lab fridge pressure, how many is 2.00 and the air is at standard temperature and gaseous molecules does the flask Number 1.48 x 10 molecules NO Previous ® Give Up & view solution Try Again Next lExit Explanation Air is a mixture gases, but you can treat it as an ideal and calculate number of gaseous of about individual gaseous components molecules in the given volume without worrying Use the following as convertion factors: 22.4 L. (Avogadro's number) One mole of ideal gas at STP occupies molecules contains 6,022

Explanation / Answer

volume= 2.00 L

pressure = 1.00 atm

temperature = 273 K

P V = n R T

n = P V / R T

n = 1 x 2.00 / 0.0821 x 273

n = 0.0892

number of molecules = 0.0892 x 6.023 x 10^23

                                  = 5.37 x 10^22 molecules

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