00:01
So this question is asking what the pressure is inside of a flask that has a volume of 5 liters, contains 0 .60 grams of 02, and is at a temperature of 22 degrees celsius.
00:16
So the first thing we want to do whenever we're working with our equation, which is pv equals nrt, we want to make sure that our temperature is in kelvin.
00:30
So we're going to change this into the kelvin.
00:33
So you take your celsius and you add 273, which gives us 295 kelvin.
00:43
So we need to make sure our temperature is in kelvin.
00:46
We also have the other known of r, which is 0 .08206 liters times atm divided by kelvin times moles.
01:05
Okay, so we have our volume.
01:08
Our volume is in liters, so that's great.
01:09
We don't need to do anything to that.
01:11
We changed our temperature to kelvin.
01:13
We have our gas constant, but we need to find our number of moles here.
01:20
And we have our grams of o2, but we need to change that into moles of o2...