Answer to Question #160966 in General Chemistry for Anne

General Chemistry

Question #160966

At what pressure will a sample of He (g) have a

density of 0.112 g/L at 27°C?

Expert's answer

PM = "\\rho" RT

M (molar mass of helium) = 4

R = 0.0821

T = 273+27 = 300K

"\\rho" = 0.112g/L

P×4 = 0.112×0.0821×300

P = 0.68964 atm

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