Answer to Question #288440 in General Chemistry for meow^_^

Question

Oxygen (O₂) gas is observed to diffuse through a capillary for 18 seconds. How long will it take for methane gas (CH₄) to diffuse through the same orifice under identical conditions of temperature and pressure? (10 points)

Answer 1

R2/R1 = M1/M2

M (O₂) = 32 g/mol

M (CH₄) = 16 g/mol

R2/18 = 32/16

R2(CH₄) = 32/16 x 18 = 36 seconds