In a Mixture of Hydrogen and Helium Gases,the Mole Fraction $\times$

question 4

Multiple Choice

In a mixture of hydrogen and helium gases,the mole fraction of helium is 0.75.If the partial pressure of hydrogen in the mixture is 75 torr,what is the total pressure of the mixture?

• A)1.0 \(\times\) 10² torr
• B)3.0 \(\times\) 10² torr
• C)1.9 \(\times\) 10¹ torr
• D)7.5 \(\times\) 10² torr
• E)7.6 \(\times\) 10² torr

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