00:02
Hi there.
00:03
In this question, we are given moles and we are trying to determine the number of atoms.
00:15
Well, anytime we're converting from moles to atoms or for that matter from atoms back to moles, we need to use avagadro's number.
00:27
Avagadro's number tells us that in one mole of anything, there are 6 .02 times 10 to the 23rd representative particles.
00:45
And you might be asking, hey, what's a representative particle? the answer to that is, especially for a chemistry question, is a representative particle, it can be atoms, it can be molecules, it can be electrons, it can be ions, it can be formula units.
01:01
It can mean any particle that we're trying to find a number of.
01:06
If you're particularly hungry, it could represent donuts, and you could go to dunkin ' donuts and order a mole of donuts.
01:15
I think that'd be quite a few donuts.
01:17
So you might not want to do that.
01:19
But i was just trying to point out the fact that mole really just means a number, just like one dozen equals 12.
01:27
Okay, so let's go ahead and solve this problem then, using that equality.
01:32
So we are starting with 2 .25 moles of neon...