Partial pressure of helium =275.7 torr
Given data,
275 mL is the flask one volume.
Helium's pressure is 752 torr.
The second flask's volume is 475 mL.
722 torr is the argon pressure.
Partial pressure is equal to what?
As,
V2 is equal to 275 + 475 = 750 mL.
Using helium:
P₁V₁ = P₂V₂
P₂ = P₁V₁ /V₂
P₂ = 752 torr. 275 mL / 750 mL
P₂ = 206800 torr. mL /750 mL
P₂ = 275.7 torr
Therefore, Partial pressure of helium =275.7 torr
Learn more about helium here;
https://brainly.com/question/4945478
#SPJ4
