What is the total pressure of a gas mixture that contains 31.0 kPa of oxygen, 26.8 kPa of nitrogen and 26.7 kPa of hydrogen? A
57.7kPa
о
B
84.5kPa
o
c
56.7kPa
o
D
85.4kPa

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To prevent the presence of air, noble gases are placed over highly reactive chemicals to act as inert "blanketing" gases. a chemical engineer places a mixture of noble gases consisting of 4.37 g of he, 13.36 g of ne, and 36.65 g of kr in a piston-cylinder assembly at stp. calculate the partial pressure in torr of kr.