A sample containing 4.80 g of #O_2# gas has a volume of 15.0 L at constant pressure and temperature. What is the new volume, in liters, after 0.500 mole of #O_2# gas is added to the initial sample of 4.80 g of #O_2#?
The new volume is 65.0 L.
Initially, you have
Thus, you have
If you now add 0.500 mol of
Since volume is directly proportional to the number of moles, the new volume is