Zinc metal is added to hydrochloric acid to generate hydrogen gas and is collected over a liquid whose vapor pressure is the same as that of pure water at 20.0°C (18 torr). The volume of the mixture is 1.7 L, and its total pressure is 0.508 atm. Determine the partial pressure of the hydrogen gas in this mixture. Group of answer choices 404 torr 368 torr 386 torr 626 torr 656 torr

A sample contains 10.5 g N2 (MW = 28.02 g/mol), 6.5 g He (MW = 4.00 g/mol), and 34.6 g CO2 (MW = 44.01 g/mol). If this sample has a total pressure of 15.0 atm, calculate the partial pressure due to the He (PHe)Select one:12.3 atm 8.7 atm 5.0 atm 3.5 atm

An evil mastermind is attempting to take over the world, but he needs your patent for a new power source. He has trapped you in a room and a lethal nerve gas, sarin, is effusing into the room. You must figure out a way to escape in time. a)Air is mostly nitrogen, with a molecular mass of 28 g/mol. Sarin has molecular mass of 140.11 g/mol. Using Graham’s Law of effusion, determine the rate of nitrogen effusion into the room compared to the rate of sarin gas effusion. b) Nitrogen gas effuses at the rate of 79.0 mL/s. assuming the same temperature and pressure, at what rate will sarin effuse in mL/s? c)Assuming that nitrogen will behave as an idela gas, calculate the volume, in ml N2 that 1.00 mmol N2 will occupy at STP. d) At STP, how many minutes will it take for 1.00 mmol of N2 to effuse? e) Assuming that sarin will behave as an ideal gas at STP, how many minutes do you have to escape the room before 1..6 mmol of sarin has effused into the room?

The solubility of H2 in water is primarily a result of which of the following intermolecular interactions? dipole-induced dipole forces dispersion forces hydrogen bonding covalent bonding