00:01
Hi, so to solve for this problem, we are going to use dalton's law of partial pressure equation.
00:08
So the partial pressure of a gas, call that gas 1, is equivalent to the mole fraction of that gas, gas 1, multiplied by the total pressure.
00:19
So in this case, we will solve first for the mole fraction of a, and it is equivalent to the number of moles of a divided by the total number of moles in the mixture.
00:31
So the number of moles of a is 0 .646 divided by the denominator, which is the total number of moles.
00:38
So we will add the number of moles of gas a, b, and c.
00:44
So 0 .646 plus 1 .99 plus 1 .76, this will give us 0 .147.
00:55
So this is the mole fraction of a...