Consider three 1 L flasks at STP. Flask A contains NH3 gas, flask B contains NO2 gas, and flask C contains N2 gas. Which contains the largest number of molecules? In which flask are the molecules least polar and therefore most ideal in behavior?

Question

Johnathon Mcpherson

Chemistry

24 October, 00:54

Consider three 1 L flasks at STP. Flask A contains NH3 gas, flask B contains NO2 gas, and flask C contains N2 gas. Which contains the largest number of molecules? In which flask are the molecules least polar and therefore most ideal in behavior?

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Jaslene Frank · Answer 1

1 mole of gas occupies 22.4 L at STP. Therefore, each gas has 1/22.4 moles and because the number of moles is the same, the number of molecules of each gas is also the same.

The least polar molecules are of N₂ and they will show the most ideal behavior out of all three of the gases.