0
A sample of nitrogen gas is confined in a 8.744 L container at 2.855 x 102 torr and 47 oC How many moles of gas are present in the sample?
Wiki User
∙ 12y ago
We can use the ideal gas equation (PV=nRT).
I like to use .08206 as my R constant, so I must convert torr into atmospheres. In addition, temperature must be converted into Kelvin by adding 273 to your temperature in Celsius in order for this to work.
285.5 torr / (760 torr/ATM) = .376 ATM.
Plugging in all the information into PV=nRT;
(.376 ATM)(8.744 L)=n(.08206)(320 K)
n=(.376 ATM)(8.744 L) / (.08206)(320 K)
n=.125 mol N2(g)
This can also be done with van der Wall's non-ideal gas equation, but it involves cubic equations that can get quite ugly and they yield an extremely close value to .125 moles.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
Is a sample of nitrogen and oxygen in the same container homogeneous?
It would be freely mixed, so yes.
A sample of air that weighs 1.25 kilogram how many kilogram of nitrogen are present?
On average, air contains around 76.7 % nitrogen gas by mass. This means that there is around 0.959 kg of nitrogen present.
Which statement correctly describes a sample of gas confined in a sealed container?
X and Z both have the same number of molecules
How do you distinguish between nitrogen oxide and oxygen using a chemical test?
Use a sample of pyrogallol (C6H6O6) in the sample followed by a combustion reaction. This compound absorbs oxygen present.
When a sample of gas is cooled in a closed container the pressure inside the container?
increases......
A sample of nitrogen gas is confined to a 14.0 L container at 375 torr and 37 degrees Celsius How many moles of nitrogen are in the container?
.271 mol
When nitrogen gas is added to a sample of neon gas in a closed container the pressure inside the container?
increases
Is a sample of nitrogen and oxygen in the same container homogeneous?
It would be freely mixed, so yes.
A sample of air that weighs 1.25 kilogram how many kilogram of nitrogen are present?
On average, air contains around 76.7 % nitrogen gas by mass. This means that there is around 0.959 kg of nitrogen present.
Which statement correctly describes a sample of gas confined in a sealed container?
X and Z both have the same number of molecules
When nitrogen gas is added to a sample of neon gas in a closed container the pressure inside does what?
It rises, because you have packed more atoms into the same space.
Is nitrogen present in starch?
No, nitrogen is not present in starch. Starch is a carbohydrate and is composed of glucose molecules. Nitrogen is typically found in proteins, not carbohydrates.
How do you distinguish between nitrogen oxide and oxygen using a chemical test?
Use a sample of pyrogallol (C6H6O6) in the sample followed by a combustion reaction. This compound absorbs oxygen present.
The pressure of a sample of helium in a 1.00 L container is 0.988 ATM What is the new pressure if the sample is placed in a 4.40 L container?
The pressure of a sample of helium in a 1.00- L container is 0.988 atm. What is the new pressure if the sample is placed in a 200- L container
When a sample of gas is cooled in a closed container the pressure inside the container?
increases......
How do you get a sample on critter forge?
use a sample container and drag it to the critter to take in a sample.You can also buy a sample in the auction.Sometimes it does not work when you drag it to a critter as each container only has a certain percentage of success.
What are the two methods to cool down substances?
- place a sample in a refrigerator- place a sample in liquid nitrogen
