A Sample of neon is collected at 2.7 atm and 12.0 C. It has a volume of 2.25 L. What would be the volume of this gas at STP. It says that i have to use the combined gas law,but i do not know if i should plugs these number in for P1V1/T1 or P2V2/T2 help thank you

Question

anonymous · Answer

P1V1/T1 = P2V2/T2
252cm3

cyber405 · Answer

This equation is for ideal gases...if we suppose neon as a ideal gas then we can use it..
P1V1/T1=P2V2/T2 

P1=2.7 atm                 P2=1 atm
V1=2.25 L                   V2=??? L
T1=12+273=285 K    T2=273

cyber405 · Answer

According to new condition for neon (which is STP) we know that the volume of gas should increase...

Is that helpful...???