What volume does this sample occupy?

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The discussion revolves around calculating the volume occupied by a sample of CO2 containing 3.01x10^23 molecules at standard temperature and pressure (STP). The initial calculation attempted to use the number of molecules directly as the number of moles, leading to an incorrect result. Participants clarify that the number of moles must be calculated from the number of molecules, using Avogadro's number (6.022x10^23). The correct formula for volume (V = nRT/P) is emphasized, with the need to convert molecules to moles before proceeding. The thread concludes with acknowledgment of the mistake and appreciation for the assistance provided.
Dx
A given sample of C@2 contains 3.01x10^23 molecules at STP. what does the samle occupy?

Im not going to put down all the formulas i used since i got this wrong on a test question, can anyone tell me what answer they came up with. I said 22.4L using V = .5mol/23.4mol/L= 22.4L or something to that effect.

Dx :wink:
 
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P*V=n*R*T

You're given P,T,n, and R is a constant. Solve for V.
 
Originally posted by enigma
P*V=n*R*T

You're given P,T,n, and R is a constant. Solve for V.

I tried enigama and got it wrong. What did i do wrong?

T = 273K
R = 8.315 J/mol*K
P 1.013 x 10^5
n = 3.01 x 10^23

V= nRT/P but my answer is wrong can you figure out what I've done wrong, pls explain?
Dx
 
Originally posted by Dx
n = 3.01 x 10^23

Here's your problem. n is supposed to be the number of moles, but you inserted the number of molecules.
 
Originally posted by Tom
Here's your problem. n is supposed to be the number of moles, but you inserted the number of molecules.

O gosh, what a dummie I am!
Thanks you guys rule!
Later
Dx :wink:
 
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