00:02
Hi there.
00:03
In this question, we have a mixture of gases and we have the partial pressures of three of the four and the total pressure, and we want to determine the partial pressure of that fourth gas.
00:13
Well, to do that, we need to use dalton's law of partial pressures.
00:23
Dalton's law of partial pressures tells us that for a mixture of gases, the total pressure of the gas is going to be the result of adding all.
00:37
Of the individual partial pressures together.
00:40
So adding those partial pressures of each of the gases in the mixture gives us the total pressure.
00:47
For this question, writing this as an equation, shows us that the total pressure is going to be due to the partial pressure of the nitrogen plus the partial pressure of the argon, plus the partial pressure of the helium, plus the partial pressure of the neon.
01:11
The p, not an n, partial pressure of the neon.
01:16
Okay, so we have an equation, and we have some numbers that we're given in the equation.
01:21
We're told that the total pressure is 987 tor.
01:29
We're told that the pressure of the nitrogen, the partial pressure of the nitrogen, is 44 .0, partial pressure of the argon is 486 tour...