If you collect 45.0mL of gas at 22.0°C, through water and the total pressure of the mixture of H2 and H2O vapor is 0.9825atm what is the pressure of only the H2 in kPa? (Look up PH2O online) (SAW)

an aerosol can has a volume of 450 mL and contains 2.18g of propane (C3H8) as a propellant. if the van is 23°c, what is the pressure in the can?

11. (a) In a 20.0 L steel container, we have only 77.7 g of CO2(g), 66.6 g of N2(g), and O2(g). The temperature is 25.0 ◦C and the total pressure is 8.88 atm. What mass of O2(g) do we have, and what is its partial pressure? The molar masses of C, N, and O are 12.01, 14.01, and 16.00 g/mol. (b)  The density of a sample of pure CH4(g) at a constant pressure of 1.00 atm is 0.666 g/L. What is the average speed, or root mean square speed, of the CH4(g) molecules in this sample? The molar masses of C and H are 12.01 and 1.01 g/mol.

Please answe question C

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The gas of a certain volcano had the following composition in mole percent: 60.0% CO2, 28.0% H2, 7.40% HCl, 1.80% HF, 2.70% SO2, and 0.100% H2S.  What would be the partial pressure of  HF in atmospheres if the total pressure was 285 mmHg? 1atm = 760mmHg

in the tank equal 130.0 atm? (u) Wnat Would be the pressure NOUIU Be the pressure WInat of the gas, in kPa, if it were transferred to a container at 24 °C whose volume is 55.0 L? 5.45/ In an experiment reported in the scientific literature, male cockroaches were made to run at different speeds on a minia- ture treadmill while their oxygen consumption was measured. In 1 hr the average cockroach running at 0.08 km/hr con- sumed 0.8 mL of O2 at 1 atm pressure and 24 °C per gram of insect mass. (a) How many moles of O2 would be consumed in 1 hr by a 5.2-g cockroach moving at this speed? (b) This same cockroach is caught by a child and placed in a 1-qt fruit jar with a tight lid. Assuming the same level of continuous activ- ity as in the research, will the cockroach consume more than 20% of the available O, in a 48-hr period? (Air is 21 mol% O2.)