A mixture containing 0.770 mol He , 0.307 mol Ne , and 0.120 mol Ar, is confined in a 10.00-L vessel at 25 C .
a. Caclulate partial pressure of He, Ne, Ar
b. Calculate the total pressure of the mixtures
Please explain how you got the answer thanks!
a. Caclulate partial pressure of He, Ne, Ar
b. Calculate the total pressure of the mixtures
Please explain how you got the answer thanks!
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Dalton Law ideal gas law=PV=nRT Temperature is in Kelvin
Pa=moles of a(RT)/V
Pa=partial pressure of A
Ptotal=Pa+Pb+Pc..
to find the partial pressure of He
PHe=0.770moles(0.08216 L*atm/mol*Kelvin)(298K)/10.0L=1.88 atm
Do now the same to determine the partial pressure of Ne, and Ar then add all partial pressure of the mixture to obtain the total pressure of the mixtures.
Good Luck and Practice.
Pa=moles of a(RT)/V
Pa=partial pressure of A
Ptotal=Pa+Pb+Pc..
to find the partial pressure of He
PHe=0.770moles(0.08216 L*atm/mol*Kelvin)(298K)/10.0L=1.88 atm
Do now the same to determine the partial pressure of Ne, and Ar then add all partial pressure of the mixture to obtain the total pressure of the mixtures.
Good Luck and Practice.