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"A 1-L flask is filled with 1.45 g of argon at 25 ∘C. A sample of ethane vapour is added to the same flask until the total pressure is 1.11 bar ."
(A) What is the partial pressure of Argon PAr , in the flask?
(B) What is the partial pressure of ethane, Pethane , in the flask?
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- Natural gas is a mixture of hydrocarbons, primarily methane (CH4) and ethane (C2H6). A typical mixture might have mole fraction of methane = 0.915 and mole fraction of ethane = 0.085. (a) What are the partial pressure of the two gases in a 14.10 L container of natural gas at 30 degrees Celcius and 1.34 atm? (b) Assuming complete combustion of both gases in the natural gas sample, what is the total mass of water formed? Hint: Write the balanced combustion chemical equation for each gas separately in the gas mixture to find the mass of water formed.What is the temperature in K of 0.500 mole of neon in a 2.00L vessel at 4.32 bar? R = 0.08314 L· bar/mol·K.In dry atmospheric air, the four most abundant components are N2, X = 0.808; O2, X = 0.1915; Ar, X = 9.34x10-5; and CO2, X = 4.066x10-4. Calculate the partial pressure of CO2, in torr, under standard atmospheric conditions.
- A gas mixture at room temperature contains 10.0 mol CO and 12.5 mol 0,. (a) Compute the mole fraction of CO in the mixture. (b) The mixture is then heated, and the CÓ starts to react with the O, to give CO2: CO(g) + O2(g) –→ CO2(g) At a certain point in the heating, 3.0 mol CO, is present. Determine the mole fraction of CO in the new mixture.What is the partial pressure (in atm) of CO₂ at 468.2 K in a 25.0 L fuel combustion vessel if it contains 60.0 grams CO₂, 82.1 g H₂O, and 7.30 mol vaporized, yet uncombusted fuel?In dry atmospheric air, the four most abundant components are N2, X = 0.808; O2, X = 0.1915; Ar, X = 9.34x10-5; and CO2, X = 4.066x10-4. Calculate the partial pressure of Ar, in torr, under standard atmospheric conditions.
- Consider the reaction: 2 NO(g) + Br2(g) =2 NOBI(g) A chemist placed 0.0322 mol of NO and 1.70 g of bromine (Br2) into a sealed 1.00 L reaction vessel and then allowed the reaction to reach equilibrium. The pressure of the NOBR at equilibrium at 25.0°C is 0.444 bar. (R = 0.08314 L·bar/mol·K and MW of Br2 is 159.808 g/mol.) Calculate the Kp.A gas mixture used for anesthesia contains 2.83 mol oxygen, O2, and 8.41 mol nitrous oxide, N2O. The total pressure of the mixture is 192 kPa.(a) What are the mole fractions of O2 and N2O?(b) What are the partial pressures of O2 and N2O?Consider the reaction: 2 NO(g) + Br2(g) =2 NOBr(g) A chemist placed 0.0322 mol of NO and 1.70 g of bromine (Br2) into a sealed 1.00 L reaction vessel and then allowed the reaction to reach equilibrium. The pressure of the NOBR at equilibrium at 25.0°C is 0.444 bar. (R = 0.08314 L·bar/mol· K and MW of Br2 is 159.808 g/mol.) Calculate the Kp. Incorrect, 1 attempt remaining Your submission: Feedback: Use PV=nRT to determine the initial pressures of the reactants. You can then determine the pressures of the reactants equilibrium by subtracting the pressure that reacted. Kp = P(NOBr)*/P(NO)²*P(Br)2 43.8 %3D
- A mixture consiting of 1.000 mol H2O(g) and 1.000 mol CO(g) is placed ina reaction vessel of volume 10.00 L at 800. K. At equilibrium, 0.665 mol CO2(g) is present as a result of the reaction CO (g) + H2O (g)⇋ CO2(g)+H2(g). What are the value of KC at 800. K?Oxygen gas can be prepared by heating potassium chlorate according to the following equation: 2KClO3(s)2KCl(s) + 3O2(g) In an experiment, the O2 gas formed is collected over water in a flask where the total pressure is 753 mm Hg and the temperature is 26.0°C, at which temperature the vapor pressure of water is 25 mm Hg. (1) What is the partial pressure of O2 in the flask? ______ mm Hg.(2) If the wet O2 gas occupies a volume of 8.49 L, how many moles of O2 are formed? _______ molSuppose you have 600.0 grams of room temperature water (20.0 degrees Celsius) in a thermos. You drop 90.0 grams of ice at 0.00 degrees Celsius into the thermos and shut the lid.(a) What is the equilibrium temperature of the system? (b) How much ice is left (in grams)? Provide a step-by-step explanation for how you arrived at your solution as though you were teaching a student to solve this type of problem.
