## A 1.00 L flask is filled with 1.05 g of argon at 25 ∘∘C. A sample of ethane vapor is added to the same flask until the total pressure is 1.300 atm. What is the partial pressure of argon, PAr, in the flask?

Question

### Question:

External and InteA 1.00 L flask is filled with 1.05 g of argon at 25 ∘∘C. A sample of ethane vapor is added to the same flask until the total pressure is 1.300 atm. What is the partial pressure of argon, PAr, in the flask? renal Respiration in the Lungs: Definition & Process

Incomplete Pressures
The all out weight of a blend of gases in a compartment is the total of the weight applied by every one of the gases. For a compartment with a blend of gases An and B we can say:
Ptotal=PA+PB
The incomplete weight of one of the gases in the blend can be resolved utilizing the perfect gas condition if the quantity of moles of that gas are known:
PA=nART/V
The gas steady R is 0.082
Latm/Kmol.Becauseithasuntisofkelvin, temperatureneedstobeconvertedtoKelvin.LatmKmol.

Explanation:
We can decide the moles of Argon utilizing the molar mass of argon (39.9g/mol):
molesAr:1.05g⋅1mol/39.9g = 0.0263moles
We would then be able to decide the weight applied by the Argon, the incomplete weight of the argon utilizing the perfect gas condition subsequent to changing over temperature from Celsius to Kelvin. The absolute weight is additional data in this issue:
25oC+273=298K
PAr=nArRT/V=0.0263mol⋅0.082LatmKmol⋅298K/1.00L=0.643atm

solved 0
2 years 1 Answer 1469 views 0