Okay, this problem was a little bit interesting for me because I never ever used the Vander wal's stuff. Let me get down here. Lost my problem. So we are given the following information, It turns out that the Vanderbilts constant be Equals four times the total volume actually occupied by the molecules of a mole of gas. Using that number, we're going to calculate the fraction of volume from here. Yeah, actually occupied by argon atoms at And then we've got two conditions are first condition is at STP and then I'll do the second condition we get there. Well, one nice thing when we're figuring this out at sdP one mole of any gas including our gun Occupies a volume of 22.4 L. When we look up B. In the table in our textbook, we found we find that B is equal to where did I write this down? .03- two. And again that's leaders per mall. That's how many leaders remote. And this is also leaders promote. So we're told that this Factor of four times the total volume Is what it's actually going to occupy. So we're going to take 0.03-2 whoops divided by four And that equals 03,- 8.05 times 10 to the -3. And that'll be little is primal. And now to find our fraction we're simply going to take 8.05 Times 10 to the -3 Leaders from all divided by 20 to 4 leaders Permal. And I got for this one 3.59 times 10 to the -4. Now this one did have the answer in the back of the book. And they reported I'm going to right here. Book reported a percentage. So to do percentage we'd have to multiply this number times 100. So we get 359 Times 10 to the -2%. And I'm gonna put like a dotted circle around this because it did very specifically say find the fraction this is the fraction. This is not a fraction, that's 1%. Our second problem asks us to do the same thing but this time we're going to not be at STP we are going to be at 20 0.27 mega pascal's And 0°C. So now we're going to use the ideal gas law to solve for V. And we're gonna have one mall because that's what we're dealing with. Our pressure is Excuse me, are is 831, There's my units and at 0°C. Is that Calvin divided by 20.27 and of course I'll go times 10 to the third killer pascal's Solving for v. On this one. I got 0.1120 and that will be leaders per mole because that was per one mall. We'll do the same thing now 85 times 10 to the minus third. Leaders per mole Divided by 0.1120 leaders Permal. And for this I got 7.19 Times 10 to the -2. And this is the fraction. Again, your book book reported a percent, Which would be simply this number times 100, Was at 7.19 times 10 to the -2. Yeah, it was 7.19 percent. And again, I'll put this around here. That's the answer in the book, but that's not really what they asked you for.