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A flask contains a mixture of Ne(g) and ...

A flask contains a mixture of Ne(g) and Ar(g). There are 0.250 mol of Ne(g) which exerts a pressure of 205 mm Hg. If the Ar(g) exerts a pressure of 492 mmHg, what mass pf Ar(g) is in the flask? (Ar=40)

A

4.16g

B

12.1g

C

24.0g

D

95.9g

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The correct Answer is:
c
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