00:01
So if we have the same number of molecules, that means we have the same number of moles also.
00:12
So if we try to calculate number of moles of hydrogen, if we have 3 times 10 to 22 molecules, okay, and how do we convert this to most? we're going to use abogadros number.
00:27
Just for every one mole of any substance in this case, one mole of age, it will contain.
00:32
6 .022 times 10 to be, 23.
00:37
This is molecules.
00:39
So that means we have 0 .0498 moles of hydrogen.
00:48
And then if we calculate for helium, number of moles of helium, since we have the same number of molecules, 3 times 10 to the 22, okay, and then going to divide also, of a grader's number 6 .02 2 times 10 to be 23 this is molecules so i won't rewriting the unit because it's the same unit in our computation for the number of moles of hydrogen so we have here one mole of helium so that means we'll have the same answer 0 .0498 moles of helium and then if we are to calculate the volume using the ideal gas equation pv nr t nr t andr t um we are arranging this since our unknown is the volume.
01:37
So we have nrt over t.
01:40
So we know that the number of moles is 0 .498...