00:03
Hi there.
00:04
In this question, we're told that caroline knows the number of moles of her sample.
00:09
And she is trying to convert that to the number of molecules of the substance.
00:19
Okay.
00:20
So anytime you're trying to convert from moles to the number of representative particles, in this case, the representative particles are molecules, they could be atoms, they could be electrons, they could be formula units.
00:42
But the answer to that is anytime we're trying to convert from moles to molecules or any other number of representative particles, what we need to use is avagadro's number.
00:57
And that's the only thing we need to use.
01:00
It's like saying you're trying to convert from dozen to number of donuts.
01:05
Well, all you need to know there is that there's 12 and a dozen.
01:09
So to convert from moles to number of molecules, you just need to know how many molecules there are in a mole...