00:01
So in this problem, we want to find the gauge pressure of carbon dioxide.
00:06
And so we'll begin by just finding the total pressure, which we can find by the ideal gas law, pv equals nrt.
00:14
And so p is what we're looking for.
00:16
That's our pressure.
00:17
Our volume is 3 .45 liters.
00:21
That's given.
00:23
Our n, we have 16 .0 grams of co2.
00:29
And so we divide that by 44 .01 grams per mole.
00:35
That's the molar mass of co2.
00:37
Our grams cancel, and we end up that we have 0 .36 -36 moles.
00:47
Our r value is 0 .082 -057 liter atmospheres per mole kelvin.
01:02
And our temperature is 298 kelvin.
01:09
And so we can rearrange this to solve for pressure...