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A welder using a tank of volume 7.30×10−2 m3 fills it with oxygen (with a molar...

A welder using a tank of volume 7.30×10−2 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 37.0 ∘C. The tank has a small leak, and in time some of the oxygen leaks out. On a day when the temperature is 23.7 ∘C, the gauge pressure of the oxygen in the tank is 1.85×105 Pa .

Part A.

Find the initial mass of oxygen.

Express your answer in kilograms.

Part B.

Find the mass of oxygen that has leaked out.

Express your answer in kilograms.

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