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ID: 979867 • Letter: H
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https:// session.masteringchemistry.com/ myct/itemView? assignmentProblemID-60412883 CH182 winter 2016 He Homework 3 t Using Gas Laws previous l 8 of 9 l next t Using Gas Laws Part B The gas sample has now returned to its original state of 1.00 atm, 20.0 o C, and 1.00 L. What will the pressure become if the temperature of the gas is raised to 200.0 °C and the piston is not allowed to move? This figure (Figure 1) shows a container that is sealed at the top by a movable piston nside the container is an ideal gas at 00 Express your answer with the appropriate units atm, 20.0 °C, and 1.00 L. This information will apply to the first three parts of this problem. P 61 atm Submit Hints My Answers Give Up Review Part Correct Part C The gas described in Parts A and B has a mass of 1.66 g. The sample is most likely which monatomic gas? Type the elemental symbol of the gas. symbol Ar Submit Hints My Answers Give Up Review Part Correct Figure 1 Part D Assuming ideal behavior, how many moles of argon would you need to fill a 11.0 x 12.0 x 10.0 ft room? 2 L Assume atmospheric pressure of 1.00 atm, a room temperature of 20.0 o C, and 28.2 L/ft3 piston container Express your answer with the appropriate units ideal gas sample moles of argon Value Units Subm Hints My Answers Give Up Review Part Provide FeedbackExplanation / Answer
B) Volume & moles is constant as piston is not allowed to move.
P1/T1 = P2/T2
1 /293.15 = P2/473.15
P2 = 1.614 Atm
D) PV = nRT
Volume of room = 11 x 12 x 10 = 1320 ft3 = 37378.24 litres
n = PV/RT = (1 x37378.24)(0.0821x293.15) = 1553.05 mole of argon
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