00:02
What you can see here is one equation using dimensional analysis in order to solve this problem.
00:09
So the information that you were given was 15 grams of hemoglobin per 100 milliliters.
00:19
So what i've done is i've done the whole dimensional analysis straight across, as well as showing you the units that we would be solved for at each point of the equation.
00:31
So 15 .5 grams per milliliter.
00:34
It starts out with your units of grams per milliliter.
00:37
As you go through, first you convert into liters.
00:41
So you're multiplying by.
00:43
In fact, i'm going to actually zoom in and then we'll zoom back out.
00:48
So first you're multiplying by milliliters over liters in order to get rid of this.
00:55
And that would leave you with grams per liter.
00:58
Then a second piece of information that was given to you was, was the moles per gram or grams per mole.
01:06
But we're going to flip that around because the goal here is to get rid of our grams.
01:10
So we would be removing this unit of grams with that unit of grams right there.
01:16
Again, stopping at each point would tell you the units that you've got down here on the bottom.
01:21
So at that point, we're solving for moles per liter.
01:25
We continue along because we want to convert our moles of liters into molecules at this point...