Question

: A gas mixture containing 5% by mass of butane and 95% by mass of

Ar(40) is to be prepared by allowing gaseous butane to fill an evacuated 40 L cylinder at 1.0 atm and 27°C.

24 Calculate mass of Ar that gives the desired composition

(A) 1142 g (B) 1786 g (C) 1347.5 g (D) 945.6 g

25 What is the total pressure of final mixture.

(A) 15.4 atm (B) 16.6 atm (C) 28.54 atm (D) 24.7 atm​

Answer 1

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