 Okay, so this is another one of those chair structure problems Let me read it says Consider the structure of trans one ethyl three methyl cyclohexane Which statement is fully correct about the most stable chair confirmation? And then it gives you these four Answers, okay, so this is a multiple choice question. Let's go ahead and Draw this thing out. I like to draw these things out to in order to You know be able to figure out what which one of these answers is correct So first I would draw it out in its bottom line form. Okay, so I take this and Of course it's a cyclohexane so The easy part right but now it's one ethyl and three methyl so one and three but it's trans, right? So let's make that and it doesn't matter which one put forward and Which one you put back, but it's gonna look like that, okay? So now you should be able to take that and draw those chair structures from So let's do that It's a little tall Sit down at the chair here to draw the chair structures. So remember The first thing you want to do is just draw your chair. Okay, then you want to draw your other chair Hopefully you're pretty good at drawing those things by now So it's trans so that means one's up and one's down. Okay, does that make sense when it's one one's up and one's down Okay, wonderful. So I always like to start at the one position there Okay, so since that's towards us, you know, that's going to be up. So where would I put it there? Axial right so remember we say the arrow is kind of pointing So we're going to put it straight up Okay, and it's an apple group. So Let's do that I'm going to erase this portion just so it doesn't get in my way. Okay, because I can see people are already kind of Everybody wrote that Okay, so the three methyl that was down so we go one two three What would be the opposition here within the axiol area? Axial so the methyl group is what? Equatorial remember it has to be parallel to two lines away or two lines away. So it's going to be Okay, so don't put it like that like a lot of people like to do Okay, so here we have the apple group in the axial position in the methyl group in the equatorial position Do you think that's the more stable? Why not? Yeah, the larger group wants to be in the equatorial position, right? Okay, so what does this say remember carbon one is here so we flip that down flip that up, right? So if that's carbon one then that means that's part of the one there, right? So it goes from up axial to over here. What? Equatorial right so the axial would be there so And then the three position one two three is there One two three is there. Okay, so the methyl groups down Equatorial so what is it going to be over here down? And you've already answered the question right so this is the more stable form here Okay, so let's go here are both groups Equatorial in the most stable form Oh, sorry, I messed up. That's the most stable form. That was a trick question, right? Okay, so our both groups equatorial in that stable form now both groups axial now meadow group axial Ethel group equatorial, right? Yeah, no problem with that one, except when I circle the wrong stroke But I'm glad you all caught that so any questions on it?