Multiple ChoiceConsider two containers of gases at the same temperature. One has helium at a pressure of 1.00 atm. The other contains carbon dioxide with the same density as the helium gas. What is the pressure of the carbon dioxide gas sample? 534views
Multiple ChoiceDetermine the molecular formula of a gaseous compound that is 49.48% carbon, 5.19% hydrogen, 28.85% nitrogen, and 16.48% oxygen. At 27°C, the density of the gas is 1.5535 g/L and it exerts a pressure of 0.0985 atm.761views1rank2comments
Textbook QuestionConsider the following samples of gases:If the three samples are all at the same temperature, rank them with respect to (c) density428views
Textbook QuestionA 1.0-L container of liquid nitrogen is kept in a closet measuring 1.0 m by 1.0 m by 2.0 m. Assuming that the container is completely full, that the temperature is 25.0 °C, and that the atmospheric pressure is 1.0 atm, calculate the percent (by volume) of air that is displaced if all of the liquid nitrogen evaporates. (Liquid nitrogen has a density of 0.807 g/mL.)2812views2rank
Textbook QuestionRank the following gases from least dense to most dense at 101.33 kPa and 298 K: O2, Ar, NH3, HCl.869views
Textbook QuestionRank the following gases and vapors from least dense to most dense at 101.33 kPa and 298 K: water vapor 1H2O1g22, nitrogen 1N22, hydrogen sulfide 1H2S2.821views
Textbook Question(b) Calculate the molar mass of a vapor that has a density of 7.135 g>L at 12 °C and 99.06 kPa.1066views
Textbook QuestionWhat is the density (in g/L) of hydrogen gas at 20.0 °C and a pressure of 1655 psi?3600views1rank
Textbook QuestionThe matter in interstellar space consists almost entirely of hydrogen atoms at a temperature of 100 K and a density of approximately 1 atom>cm3. What is the gas pressure in millimeters of mercury?940views
Textbook QuestionA sample of N2O gas has a density of 2.85 g/L at 298 K. What is the pressure of the gas (in mmHg)?2572views
Textbook QuestionWhat is the density in g/L of a gas mixture that contains 27.0% F2 and 73.0% He by volume at 714 mm Hg and 27.5 °C?949views1rank
Textbook QuestionWhat are the molecular weights of the gases with the following densities: (b) 1.053 g/L at 25 °C and 752 mm Hg505views
Textbook QuestionPropane, C3H8, liquefies under modest pressure, allowing a large amount to be stored in a container. (a) Calculate the number of moles of propane gas in a 20-L container at 709.3 kPa and 25 C. (b) Calculate the number of moles of liquid propane that can be stored in the same volume if the density of the liquid is 0.590 g/mL. (c) Calculate the ratio of the number of moles of liquid to moles of gas. Discuss this ratio in light of the kinetic-molecular theory of gases.1167views
Textbook QuestionTwo 112-L tanks are filled with gas at 330 K. One contains 5.00 mol of Kr, and the other contains 5.00 mol of O2. Considering the assumptions of kinetic–molecular theory, rank the gases from low to high for each of the following properties. (b) Density (g/L)361views
Textbook QuestionThe density of a gas of unknown molar mass was measured as a function of pressure at 0 C, as in the table that follows. (b) Why is d>P not a constant as a function of pressure?618views
Textbook QuestionThe density of a gas of unknown molar mass was measured as a function of pressure at 0 C, as in the table that follows. (a) Determine a precise molar mass for the gas. [Hint: Graph d>P versus P.] 935views
Textbook QuestionAn 11.5-mL sample of liquid butane (density = 0.573 g>mL) is evaporated in an otherwise empty container at a temperature of 28.5 °C. The pressure in the container following evaporation is 892 torr. What is the volume of the container?3351views3rank
Textbook QuestionA quantity of N2 occupies a volume of 1.0 L at 300 K and 1.0 atm. The gas expands to a volume of 3.0 L as the result of a change in both temperature and pressure. Find the density of the gas at these new conditions.1656views1comments
Textbook QuestionA gas mixture composed of helium and argon has a density of 0.670 g>L at a 755 mmHg and 298 K. What is the composition of the mixture by volume?968views
Open QuestionWhat is the density of laughing gas, dinitrogen monoxide, N2O, at a temperature of 325 K and a pressure of 113.0 kPa?181views
Open Questiona gas with a molar mass of 26.54 g/mol is at a pressure of 172 torr and 27 °C. What is its density?141views
Open QuestionThe density of a gas is 2.49 g/L at 3.00 atm and 25oC. Calculate the molar mass of the gas.193views
Open QuestionWhat is the molar mass of an unknown gas with a density of 3.55 g/L at 2.00 atm and 55.0 °C?183views