A sample of nitrogen gas kept in a container of volume 23 L and at a

A sample of nitrogen gas kept in a container of

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4.A sample of nitrogen gas kept in a container of volume 2.3 L and at a temperature of 32°C exerts a pressure 4.7 atm. Calculate the number of moles of gas present.(8 points)a.V=2.3Lb.P=4.7atmc.T=32+273=305Kd.R=0.082e.PVnRTnPV / RT(4.7x2.3) / (0.082x305)0.4mol(Reference: Chang 5.31)5.What volume will 5.6 moles of sulfur hexafluoride (SF6) gas occupy if the temperature and pressure of the gas are 128°C and 9.4 atm?(8 points)(Reference: Chang 5.33)6.A gas-filled balloon having a volume of 2.50 L at 1.2 atm and 25°C is allowed to rise to the stratosphere (about 30 km above the surface of Earth), where the temperature and pressure are –23°C and 3.00 × 10–3atm, respectively. Calculatethe final volume of the balloon.(8 points)(Reference: Chang 5.35)2Copyright © 2017 by Thomas Edison State University. All rights reserved.
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