Question

A welder using a tank of volume 7.50×10⁻² m3 fills it with oxygen (with a molar mass of 32.0 g/mol ) at a gauge pressure of 3.25×10⁵ Pa and temperature of 37.9 ∘C. The tank has a small leak, and in time some of the oxygen leaks out. On a day when the temperature is 22.6 ∘C, the gauge pressure of the oxygen in the tank is 1.60×10⁵ Pa .

Part A

Find the initial mass of oxygen. (in Kg)

(Following the steps submitted by another person for this problem, I got the mass = .301616 Kg and it was wrong)

Part B

Find the mass of oxygen that has leaked out. (in Kg)

If you are able, please include your steps so I can understand the math. Thank you for your help.

Answer 1

RAer, v,,v,,구.so x 10'nw.3 '2.36 moleo ofo'ter_w.mn_ (32-011wud), İta 36 wued.) Mİ= 39 S.52 R及 WM で314 Jw.et-1 k") (29S 75K) 시1-(0.39551-o asst,4) kg ML = 0-140AS K