Part B Imagine that the gas shown in the simulation is an ideal gas such as heli

Question

Part B Imagine that the gas shown in the simulation is an ideal gas such as helium. Notice that the final number of moles of gas is 1.00 mol for each experimental run. You can find the final volume of the gas using the y axis of the graph shown. Consider an experimental run at 273 K where the initial number of moles (n1) is actually 1.00 mol, and the final number of moles (n2) is 2.00 mol. Use the simulation to find the volume (V1) of 1.00 mol of helium at 273 K, and calculate the final volume (V2). Express the volume to three significant figures, and include the appropriate units. Part C At 4.00 L, an expandable vessel contains 0.864 mol of oxygen gas. How many liters of oxygen gas must be added at constant temperature and pressure if you need a total of 1.84 mol of oxygen gas in the vessel? Express the volume to three significant figures, and include the appropriate units.

Explanation / Answer

There is 0.864 mol of oxygen already present. To get a total of 1.84 mol

amount of mol that should be added = 1.84 - 0.864 = 0.976

that is 0.976/0.864 times as much as you've got already
that is 0.976 times as much as you've got already
that is 0.976 x 4.0 L
that is 3.904 L

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