# Ideal gas to find pressure - a level physicsWatch

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#1
Calculate the density of nitrogen gas at atmospheric pressure and at 20∘C if the molar mass of nitrogen is 0.028kg.

I have rearranged to get in terms of density: density = molar massx pressure / rt

What is the atmospheric pressure at the temperature????
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6 months ago
#2
Sorry you've not had any responses about this. Are you sure you've posted in the right place? Here's a link to our subject forum which should help get you more responses if you post there.
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3 weeks ago
#3
101.325*10^3 is the atmospheric pressure you're looking for

density= (0.028*101.325*10^3)/(8.31*(20+273))

I got 1.2, I'm presuming this is from Issac physics... 1.2 is correct,
Have a nice day
(Original post by SmartFailure)
Calculate the density of nitrogen gas at atmospheric pressure and at 20∘C if the molar mass of nitrogen is 0.028kg.

I have rearranged to get in terms of density: density = molar massx pressure / rt

What is the atmospheric pressure at the temperature????
0
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