gas tank containing an air mixture of helium, nitrogen and oxygen has a total pressure of 45.0 psi. Answer the following questions given that the partial pressures of helium and nitrogen in the mixture are 7.50 psi and 13.5 psi, respectively, and there are a total of 6.75 moles of gas mixture in the tank. Report all answers to 3 significant figures. a) What is the partial pressure of oxygen?         b) Calculate the moles of oxygen in the tank.         c) Calculate the moles of nitrogen in the tank.         d) Calculate the moles of helium in the tank.

6. Sketch a graph that shows the following relationships. For each graph, state whether the relationship is direct or indirect? Explain your answer. a) The relationship between the volume and the temperature of a gas. b) The relationship between pressure and volume of a gas.

A 0.388 L sample of oxygen is collected over water with a temperature of 25 °C. The total pressure of the gases is 419 mmHg, and the water vapor pressure is 24 mmHg. What is the partial pressure of the dry oxygen gas? DO NOT INCLUDE UNITS IN YOUR FINAL ANSWER. Answer: A chemist produces 464 mL of oxygen gas at -5.5 °C and 1.1 atm. To what temperature, in °C, must the oxygen be warmed in order for it to have a volume of 500. mL at the same pressure? DO NOT INCLUDE UNITS IN YOUR FINAL ANSWER. Answer: Which concept best accounts for the fact that gases can escape through a pinhole faster at higher temperatures? Select one: G Search or type URL

What pressure exists in a 260. L tank containing 1.0 kg of neon gas at 258 K? Pressure = atm

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A glass container was initially charged with 3.40 moles of a gas sample at 3.75 atm and 21.7 °C. Some of the gas was released as the temperature was increased to 28.1 °C, so the final pressure in the container was reduced to 0.998 atm. How many moles of the gas sample are present at the end?   -don't prematurely round

A sample of gas contains has a pressure of 1.40 atm at 40.0 mL. What is the pressure of the sample in atmospheres if the volume decreases to 11 mL under constant moles and temperature? Do not include units when entering your answer.

M Gmail german class book Grossmont Health... Medical Assistant e My Evolve - Evolve 2 soc 130 E My Home O Mail E Reading List 11111656 [Review Topics) [References) Use the References to access important values if needed for this question. Many common liquids have boiling points that are less than 110°C, whereas most metals are solids at room temperature and have much higher boiling points. The boiling point of pentane , C5 H12 , is 36.1°C. What is the equivalent absolute temperature? K The boiling point of antimony is 2023.2 K. What is the equivalent temperature on the Celsius scale? Submit Answer Retry Entire Group 3 more group attempts remaining Previous Next Email Instructor Save and Exit Cengage Learning | Cengage Technical Support

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2) Which one of the following statements about gases is FALSE? a) The volume and temperature of a gas are directly proportional. b) The partial pressure of gas A is equal to the total pressure multiplied by the mole fraction of gas A. c) The total pressure in a vessel is the sum of the partial pressures of all gases in the vessel. d) The volume and pressure of a gas are directly proportional.