Help 2196 Wed 6 teringChemistry: Bonus 2 (Chap 5-8) nView?offset-next&assignment

Question

Help 2196 Wed 6 teringChemistry: Bonus 2 (Chap 5-8) nView?offset-next&assignmentProblemID-87918379; previous | 10 of 40 next a Part A A cylinder, with a piston pressing down with a constant pressure, is filled with 2.10 moles of a gas (ni), and its volume is 43.0L (V) If0.400 mole of gas leak out, and the pressure and temperature remain the same, what is the final volume of the gas inside the cylinder? Express your answer with the appropriate units. Hints ½= 1 Value Units Submit My Answers Give Up Incorrect; Try Again; 3 attempts remaining; no points deducted Check your value for n2. It should be the number of moles of gas that remain after the leak, not the amount that leaked out. Part B sample of gas in a cylinder as in the example in Part A has an initial volume of 42.0 L, and you ext day you notice that some of the gas me hut the volume has changed to have determined that it contains 1.70 moles of gas. The n

Explanation / Answer

V1=43.0L                             V2=?

n1=2.10mole                         n2=0.400mole

According to Avagadros Law,               volume is directly proportional to the number of moles at constant T and P

V1/n1 = V2/n2

43.0/2.10 = V2/0.400

V2= 8.19 mL

final volume = 8.19 mL

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