00:01
This is question 38 from chapter 13 and it's about dye nitrogen in the blood of the solubility and we are trying to see what is the pressure or the volume when diver is coming up to the surface.
00:19
So they said the dye nitrogen is equal to 4 .0 atmosphere and so the first thing we're going to do is actually use sulfur, use henry's constant.
00:36
Okay, so they do give us henry's constant.
00:43
I'm going to have this k.
00:45
That's what it stands for.
00:46
K is equal to.
00:47
And they give us a 5 .6 times 10 to negative 4 moles per liter.
01:01
And they also give us a pressure of 0 .80.
01:22
And that is going to come out to be 7 times 10 to negative 4 liters times atmosphere.
01:47
And we're going to take that and multiply that with the 4 .0 that they say it's equal to.
01:54
So 7 times 10 to negative 4 times 4 atmospheres pressure.
02:11
That is going to be equal to 2 .8 times 10 to negative 4th.
02:36
Okay, after that we have to find the di - nitrogen gas, so we have to find the number of moles of the gas dissolved.
02:45
So i'm going to take the 2 .8 and we are going to multiply that by the cell.
03:02
It was 5 liters.
03:04
So 5 .0 liters.
03:10
And that comes out to be 0 .028 moles.
03:28
Okay, now it's, i got ahead, just up .028, spoiler alert.
03:40
I'm going to basically half that, so it shouldn't have been 1, 14, my bad, so moles...