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17) A 8.10 L container holds a mixture of two gases at 21 °C. The partial...

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Chemistry

17) A 8.10 L container holds a mixture of twogases at 21 °C. The partial pressures of gas A and gas B,respectively, are 0.369 atm and 0.755 atm. If 0.120 mol of a thirdgas is added with no change in volume or temperature, what will thetotal pressure become?

18) A gas mixture is made by combining 8.0 geach of Ar, Ne, and an unknown diatomic gas. At STP, the mixtureoccupies a volume of 18.97 L. What is the molar mass of the unknowngas?

24) At a certain temperature and pressure, 1 Lof CO2 gas weighs 2.05 g. What is the mass of 1 L of CO gas at thesame temperature and pressure?

Answer & Explanation Solved by verified expert
3.8 Ratings (661 Votes)
Answer 17 To determine the total pressure Consider PV nRT Temperature T 21 27315 29415 K nA PAVT RT substitute the known values 0369810008229415 01239 moles nB PB VT    See Answer
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