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16 Nov 2019
A vessel contained N_2, Ar, He, and Ne. The total pressure in the vessel is 2.49 atm. The partial pressure of nitrogen, argon, and helium were 440, 486, and 376 torr, respectively. The partial pressure of neon in the vessel was ___ atm A) 0.495 B) 0.777 C) 0.287 D) 0.245 E) 1.00 In a gas mixture of He, Ne, and Ar with a total pressure of 15.00 atm, the mole fraction of Ar is ___ when the partial pressures of He and Ne are 3.00 and 2.00 atm, respectively. A) 0.75 B) 0.238 C) 0.667 D) 0.405 E) 0.500 The volume of 2.498 g of an ideal gas) was 754 mL at 1.98 atm and 62 degree C. The gas A) Ne B) SO_2 C) NH_3 D) NO_2 E) SO_3 A sample of oxygen gas was found to effuse at a rate 3.316 times faster than that of an unknown gas. The molecular weight of the unknown gas is g/mol. A) 288 B) 12 8 C) 352 D) 16 E) 512 A real gas differs from an ideal gas in that the molecules of a real gas_ A) have strong attraction for one another and occupy finite volumes B) have perfectly elastic collisions C) have a molecular weight of zero D) have no kinetic energy L) have an average molecular mass
A vessel contained N_2, Ar, He, and Ne. The total pressure in the vessel is 2.49 atm. The partial pressure of nitrogen, argon, and helium were 440, 486, and 376 torr, respectively. The partial pressure of neon in the vessel was ___ atm A) 0.495 B) 0.777 C) 0.287 D) 0.245 E) 1.00 In a gas mixture of He, Ne, and Ar with a total pressure of 15.00 atm, the mole fraction of Ar is ___ when the partial pressures of He and Ne are 3.00 and 2.00 atm, respectively. A) 0.75 B) 0.238 C) 0.667 D) 0.405 E) 0.500 The volume of 2.498 g of an ideal gas) was 754 mL at 1.98 atm and 62 degree C. The gas A) Ne B) SO_2 C) NH_3 D) NO_2 E) SO_3 A sample of oxygen gas was found to effuse at a rate 3.316 times faster than that of an unknown gas. The molecular weight of the unknown gas is g/mol. A) 288 B) 12 8 C) 352 D) 16 E) 512 A real gas differs from an ideal gas in that the molecules of a real gas_ A) have strong attraction for one another and occupy finite volumes B) have perfectly elastic collisions C) have a molecular weight of zero D) have no kinetic energy L) have an average molecular mass
Bunny GreenfelderLv2
29 Oct 2019