The gas sample that has the same number of molecules as 2.0 liters of CH4(g) at STP is 2.0 liters of O2(g).
What is the number of molecules of oxygen gas?
The number of molecules of oxygen gas at Standard Temperature and Pressure (STP) is determined as;
1 moles = 22.4 L = 6.02 x 10²³ molecules
from the question, 1 moles of CH4 = 2 liters = 1 moles of O2 occupying 2 liters.
Thus, the gas sample that has the same number of molecules as 2.0 liters of CH4(g) at STP is 2.0 liters of O2(g).
Learn more about volume of gas stp here: https://brainly.com/question/27100414
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