7. Gases
Partial Pressure
- Open QuestionWhat is the partial pressure of argon, par, in the flask?1views
- Multiple ChoiceWhich of the following statements about partial pressures of gases in the lungs is true?
- Multiple ChoiceIf two gases are present in a container, the total pressure in the container is equal to:2views
- Multiple ChoiceIn the reaction of calcium metal and water, 50.0 mL of hydrogen gas is collected over water at 25.0℃ with a total pressure of 752 mmHg. Calculate the number of moles of hydrogen gas that was produced.3views
- Open Question
A 15-l cylinder contains 4.0 g of hydrogen and 28 g of nitrogen. If the temperature is 27 °C, what is the total pressure of the mixture?
1views - Multiple ChoiceWhich of the following is a correct method to calculate the partial pressure exerted by a gas in a mixture?1views
- Multiple ChoiceWhich statement correctly describes the partial pressures of oxygen and carbon dioxide in systemic cells under resting conditions?1views
- Multiple ChoiceA mixture of argon and hydrogen gases, in a 6.38 L flask at 90°C, contains 6.37 grams of argon and 0.399 grams of hydrogen. The partial pressure of hydrogen in the flask is ___ atm and the total pressure in the flask is ___ atm. What is the partial pressure of hydrogen in the flask?
- Multiple ChoiceGiven a sample of 1.48 g of helium and an unknown mass of O₂ mixed in a flask at room temperature, with the partial pressures of helium and oxygen being 41.2 torr and 159 torr respectively, what is the total pressure in the flask?
- Multiple Choice
A gas mixture contains 72.8% chlorine and 27.2% neon by mass. What is the partial pressure of neon in the mixture if the total pressure is recorded as 809 mmHg?
5views1rank - Multiple ChoiceWhat is the total pressure (in atm) inside a vessel containing N2 exerting a partial pressure of 0.256 atm, He exerting a partial pressure of 203 mmHg, and H2 exerting a partial pressure of 39.0 kPa?
- Open Question
A mixture of 10.0 g of nNe and 10.0 g Ar have a total pressure of 1.6 atm. What is the partial pressure of Ne?
- Multiple ChoiceA gas mixture with a total pressure of 795 mmHg contains the following gases at the indicated partial pressures: 155 mmHg CO2, 235 mmHg Ar, and 109 mmHg O2. The mixture also contains helium gas. What mass of helium gas is present in the mixture, given that the molar mass of helium is 4.00 g/mol?
- Multiple Choice
A sample of 3.51 g argon and an unknown amount of oxygen are mixed in a container at room temperature. The partial pressure of argon was calculated as 71.0 torr and the partial pressure of oxygen as 188 torr. What is the mass of the oxygen within the container?
7views1rank - Open Question
A mixture of three gases has a total pressure of 1,380 mmHg at 298 K. The mixture is analyzed and is found to contain 1.27 mol CO2, 3.04 mol CO, and 1.50 mol Ar. What is the partial pressure of Ar?