A student is given a gaseous sample of an unknown hydrocarbon. To measure the molar
mass of the compound, the student uses an effusion apparatus. When methane was placed
in the apparatus, it was found that 2.334 g of
it effused in a period of 3.3 h at room temperature. Under identical conditions, 2.872 g of
the unknown effused. What is the molar mass
of the unknown?
Answer in units of g/mol.1 AnswerChemistry9 months ago
An apparatus consists of a 2 L flask containing
nitrogen gas at 28◦C and 812 kPa, joined by
a valve to a 14 L flask containing argon gas
at 28◦C and 51 kPa. The valve is opened and
the gases mix. What is the partial pressure of
nitrogen after mixing?
Answer in unit kPa.Please include equation used3 AnswersChemistry9 months ago