7. Gases
Partial Pressure
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Practice this topic
- 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?
1837views11rank2comments - 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?
2007views8rank - Multiple ChoiceA 2.50-L container contains a mixture of helium, nitrogen, and argon gas. The total pressure is 1.800 atm at 295 K. The partial pressure of helium is 0.650 atm, and the partial pressure of nitrogen is 0.350 atm. How many moles of argon gas are present in the mixture?1245views
- 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.1074views
- Textbook Question
The apparatus shown here has two gas-filled containers and one empty container, all attached to a hollow horizontal tube. Assume that the containers are of equal volume and ignore the volume of the connecting tube. Which gas has the greater partial pressure after the valves are opened?
703views - Textbook QuestionTrimix is a gas mixture consisting of oxygen, helium, and nitrogen used for deep scuba dives. The helium is included to reduce the effects of nitrogen narcosis and oxygen toxicity that occur when too much nitrogen and oxygen dissolve in the blood. A tank of Trimix has a total pressure of 200 atm, and the partial pressure of He is 34 atm. What is the percent by volume of He in the tank? (LO 10.7) (a) 17% (b) 38% (c) 23% (d) 83%1444views1rank
- Textbook QuestionThe apparatus shown consists of three bulbs connected by stopcocks. What is the pressure inside the system when the stopcocks are opened? Assume that the lines connecting the bulbs have zero volume and that the temperature remains constant. (LO 10.3, 10.7)(a) 1.10 atm (b) 1.73 atm(c) 4.14 atm (d) 1.41 atm801views1rank
- Textbook Question
Consider the following samples of gases:
If the three samples are all at the same temperature, rank them with respect to (a) total pressure
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