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Science Clinic => Chemistry => Topic started by: tuffie on Nov 18, 2019

Title: A mixture of He, Ne, and Ar has a pressure of 7.85 bar. If the Ne has a mole fraction of 0.47 and Ar ...
Post by: tuffie on Nov 18, 2019

Question 1

A mixture of N2, O2, and Ar has mole fractions of 0.25, 0.65, and 0.10, respectively. What is the pressure of N2 if the total pressure of the mixture is 3.9 bar?
◦ 1.33 bar
◦ 0.98 bar
◦ 2.5 bar
◦ 0.39 bar
◦ 0.67 bar

Question 2

A mixture of He, Ne, and Ar has a pressure of 7.85 bar. If the Ne has a mole fraction of 0.47 and Ar has a mole fraction of 0.23, what is the pressure of He?
◦ 1.8 bar
◦ 5.5 bar
◦ 4.2 bar
◦ 2.4 bar
◦ 3.7 bar

Title: A mixture of He, Ne, and Ar has a pressure of 7.85 bar. If the Ne has a mole fraction of 0.47 and Ar ...
Post by: bassamabas on Nov 18, 2019

Answer 1

0.98 bar

Answer 2

2.4 bar