In this question well, given a molecule formula and ir spectrum, and brought on in the more spectrum for each question and asked to determine the structure that corresponds to now that set of data. So we have four molecules to do this fit in the first time. The door has a molecule formula C five each dress. Oh, and when we take a look at the IR spectrum, we see that it doesn't have a common here peak at 1700 on your 1800 big numbers. But what we see that it has is, ah, see singer burned old diaper a group. So let's just keep that in my hand and then wonder. The NMR spectrum and the animal are spectrum shows us that that are five beaks, and if we somewhat the integrations for these peaks we get there are 12 so two plus trees fight and then the seven in the field area. So it's 12 altogether, and that is the number of Friday. Jin's We are good is present in this molecule overload, so we can consider the integration to directly correspond to the number of protons that is giving rise to each signal. Who any each kits. So once we figured out that we can also say that the really downfield signals ah kind of overlapped on each other and one of them has, ah, integration to buy. The other has integration three and there are generally downfield from there are you would expect met the lane groups and met their groups to be so that is a group on a atom that can contribute to this day shielded nature off Medellin on the metal group. And, uh, it would give rise to a structure like this that there's a mcgillian group on one end a na oxygen in the middle and amid their group, and I didn't So this, uh, the Medellin hydrogen, it's on the middle. Red regions will have billion here chemical ships because they have very similar environments surrounding oxygen. And, ah, since this ended with the middle group, that is the end off the molecule on that side. But we can extend the molecule, uh, past the ch Dooku. So we see that in the operation have to spectrum. There are three signals. Uh, but there are two hydrogen each and, uh, signal with three hydrogen is so those are most probably coming from two meddling groups and a single metal group. But the fact that they're nicely spread out across the region does us that it's most likely coming from a long chain off three carbons. So that would look like this to search your groups. And then that's the edge to regroup. So we have accounted for five carbons. Total of hydrogen is and a single oxygen, and he can see the triplet nia 0.9 BBM that corresponds to an integration issue. Three. And it's coming from the metal protons here. There are just into this metal in proton. So to class man is going to be three. And this fights ah, split into a triplet. So this is the structure corresponding to the first. A question in the second part of the question. If we take a good look at the IR spectrum, we see that it has a carbon instruction and that it also has a Seizinger Bondo type of structure and the door lead. It has a a molecule formula C six, h 12 or do so these two groups could be coming from a nester group or are they could be coming from a separate carbon in Lana CEO also. So let's take a look at the NMR spectrum to figure out the rest of the information. So we see that it has only two bigs on the total integration. Some would be one plus 34 but we have, ah, 12 hydrogen still account for the drill divided by four is equal to three, Which just ask that that that is, um, like there are three entities in, in case of in the case of each peak, each big corresponds to three entities that are unique, um, and equivalent to each other. In the case of the are the signal also signal that has an integral issue off month that has to be three ended days, that guy equivalent to each other that this giving nice to that signal in the months they have figured out that, um, we can also see that there's a big separation between the two peaks in this NMR spectrum, which tells us that one of them is really Electra negative. I'm sorry it is really close to Elektra. Negative species by the other is considerably, um, further away from the election of the 50 shielding components. So if we had to account for three times three with the big at around 1.2 ppm, the most likely structure they can come up is come up with this arc. Ordinary carbon that has three equivalent mental group attached to it and then could be used to be considerably upfield. We have do not have ah Electra negative group immediately close to it. But it has a carbon news burned men. There's also an oxygen that gives rise to the Ester group. And then there's the CH three, the chest, the three hide regions. But I equivalent to each other and give rice studio, um downfield speak with the integration of on. So we see that the premature groups have 900 Jin's and there Single Mother group has three hydrogen, so they reduced ratio would be 123 And that's the ratio that we're seeing from the NMR spectrum. So we have also accounted for all the atoms present that are from carbons in the court in every part of the molecule 56 and then 12 hard provision altogether and to oxygen. So we have accounted for, um, all the atoms and we can also see that the metal groups don't have ah, neighboring hydrogen attached on the carbon on the coordinated carbon. So they are going to give us a single it and the stream at the roots. Also not. I just don't do any neighbor that has hydrogen attaching them, so they will also give rise to a single it. And then if they move on to the good part of the question, the IR spectrum show was a carbon your group and, um, from the molecule formulas that last ir spectrum. We can tell that Dan is a carbon clothing type front, and we also see that Danny's of Carbon Single Bond or my mind. So if you move on to the animal spectrum, we see our three signals with the daughter into girl integration off one blustery blustery, which is seven. And that is the number off protons that we need to account for. So each integration, uh, can we directly correlated to the number of protons that is giving nice to that signal? So we see that the most downfield signal is coming from a single proton. So has to be coming, most likely from like a Metin group. And then we see that it is split into a cart. It which tells us that it has to be Pagis Unwto, a metal group that has three protons. So three plus run is full. Then we'll give rise to the corner and then they also see the up field agent off the spectra. Um and, uh, there we have a single beak. It's looks like a single it. Too bad they haven't given us his wounding version. But the door that Hey, guys, Indigo tissue off three. And then there's another big that has integral issue off three, but it is considerably downfield. So for this method, I grow dawn to be down Fear most like you to reconnect the door. Electra Negative group. In this case, it's morbid clothing. And then we also know that, uh, this molecule could have a It's the group because we have a C or single bond and incompetent. So if we go with the Esther Group, we see that one of the metal groups are really downfield. So the Esther Oxygen has to be facing that method group. So they're material that is upfield would be this and the material that is downfield is this and the myth dine that this don filled is this and you do the attachment to the clothing and the proximity to the carbon, your group the mid line would be nor extra down food. So this is the structure that corresponds to, um that molecule and are we see that the upfield Matile should give rise to Ah, single it and the downfield MacDill should technically be are doublet because it's a dash of this, but, uh, the NMR spectrum is not really clear, so we don't have a zoomed in picture and contrary, Dennis, it's a double Doris England. So it could very well be a doublet. I am sure this is the structure that corresponds to that information. And if they move on to the next part of the question, we see that the I. R s picture has a really broad peak at 3000 with numbers, and that usually corresponds to and ah, which warned. And ah, that is a carbon hill bond, which we can tell from the big near 1700 numbers. And the molecule of formula for the structure is C four. It's strange or two, and then you could be Ah, take a look at the I asked victim again. There's something I missed. Um, so that is a peak in the actually, you know that I don't think we can say that there's a big in the, uh, 1,202,000 region because it's so small. Julia, I don't think this has a siobahn enemy. And then if we wanted the brought on NMR spectrum, we see that it has a peak at Dan BBM. So there's a big that really upfield, and the toll that it has offset off two ppm and it's drawing near eight pp and PSOE it blasted will begin so that we should actually Binya can't BBM in its um but he have to, uh, mentioned that there's not enough for him to draw the entire spectrum using the scale. And so they had to, um, putting up smaller picture with the offset mentioned on it. So, um, that big usually comes from carb oxalic acid. So in the marsh spectrum joins us that there's most likely a carb obsolete Cassity. And then if we look at the operation off the NMR spectrum, we see that there are spread out creeks and this three of them, which usually does. I said, There's a long chain carbon, um, long carbon chains. I'm sorry. There's a long carbon chain within this kiss. Uh, three comments because there are three signals and outfield, eight year. So if we put all that information to get there, he has to be something like this. So we see that the metal protons would be the host upfield, and th do is closer to the car box suggested And the Carbonell grope. So it would be more down field and this ch do, which is closest to the car box. It would be the most outfield. And are we have the hydrogen that has a chemical shift. Nia 10 get'em with the carb oxalic group and the integrations also match 32 to 2 and then mine. But then BBM and then we see that the split ings also match. They're, um the peak at my V. P. M, which is coming from the metal group, has split into a chip. Let so it has to be. I just sent two protons and then them peak at 1.7 ppm is a mighty plate, so it has to be, uh, gave us 22 types of protons on the two sides. It is the case for these metal products metal. Ian broadens. I'm sorry. And then the this metal mcgillian brought Don, it would be the most downfield and it good speaking to us triplet, which is reckless. E assess the most downfield signaled here besides, the be at then bpm. Okay, so, yeah, we have accounted for their information available in the NMR spectrum and become the number off atoms here for goblins. And, um eight, eight hydrogen So three plus minus four thru window. Yeah, A traditions and to oxygen's. So yeah, this is also well in agreement with the molecule formula did that they have.