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12 Draw a picture showing the strongest intermolecular force between the two components. Include the name of this strongest intermolecular force:Xenon with chloride...

Question

12 Draw a picture showing the strongest intermolecular force between the two components. Include the name of this strongest intermolecular force:Xenon with chlorideSodium bromide dissolved in waterPropane with BrominePure liquid methanol with itself; CH,OH

12 Draw a picture showing the strongest intermolecular force between the two components. Include the name of this strongest intermolecular force: Xenon with chloride Sodium bromide dissolved in water Propane with Bromine Pure liquid methanol with itself; CH,OH



Answers

Describe the intermolecular forces that are present in each of the following compounds. Which kind of force would have the greatest influence on the properties of each compound? (a) ethanol, $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}$ (contains one $\mathrm{C}-\mathrm{O}$ single bond $)$ (b) phosphine, $\mathrm{PH}_{3}$; (c) sulfur hexafluoride, $\mathrm{SF}_{6}$.

Gases, liquids and solids are all made up of atoms molecules and or irons, but the behavior of these particles do differ within the three phases so fast. We were looking at bro mean pence of fluoride, that B r f five, so Penta meaning five. So what we have is a central bro mean bonded to five fluoride in a square parameter geometry. So we see that bromine has one lone power of electrons. So this does distort the geometry ever so slightly. So because this molecule is polar, we have permanent dipole dipole forces that are present as well as dispassion forces. And the next example, we're looking at acetone. So that is C two 86 oh, so what we have here is a carbon, I'll group on the central carbon. And so of course, we have a permanent dye pole with that group with a C double Bondo. And so because the carbon is double bound to the more electro negative oxygen are, electrons will be attracted to the oxygen. This makes the acetone polar, however, because the oxygen does not have a hydrogen group attached, we don't see hydrogen bonding, even though we do have hydrogen is present in the structure they're attached to the carbon. And so what we have is dipole dipole forces again, and of course, dispassion. Finally, we have formaldehyde H two C. O. So it's a very simple carbon, I'll, so it has a carbon double bond to an oxygen. So again, we have another polar compound. So because it's polar, we can have dipole dipole, we can have discussion. So all three of these molecules have the same into molecular interaction types.

So enter molecular forces. Let's remember, Are they attractive forces between molecules as opposed to enter molecular forces, which I within the molecule? And so let's examine our compounds First, we have caesium chloride in h 20 What's the strongest type off inter molecular forces between cesium chloride water? Let's remember that season chloride is a compound eye and I any compound need up off a positive ion of cesium and a negative line of chloride on its dissolved in polar solvents, in which I have a question negative charge on oxygen and the passion positive charge of 100 accordingly in and I on a compound in a polar solve it the most or the strongest type of inter particular force is gonna be di polled di poll, in which for 50 0 for instance, it will have some form of far di pull interaction with the negatives partially negative. Charge hydrogen on Dickie's off the chloride ion. It can have a passion are an interaction and apple interaction with the partially positive hydrogen atom. Now, for our next compound, we have the following, which is a key tone anyways on is dissolved in H 20 as you said This is a polar solvent on Dhere. I have a net die polled because oxygen is more Electra negative for carbon I have And that negative charge over here are a partial negative child and a partial positive charge on dead diaper like this on DSO. This is gonna interact with the partially positive hydrogen off one motor barbecued on this is gonna interact with the partially negative oxygen off another lunch. Ironical. And so again, it's diapered apple interaction for my third compound. What I have is an alcohol methanol, to be precise. However, it it is dissolved and carbon tetrachloride, which is non polar. Even though this is Spooner due to this presence of the sidetracks of group, the thing is that we know that like dissolves like and so unfortunately, this partial negative charge will play no role or not. Let's in the control inter molecular forces. What's what happened? Is the the most prominent diaper forces. That's gonna be their idea. Under, while forces which are usually afraid to ask the non polar forces which are gonna predominant to take place between the carbon here on the carbon here due to the random motion of the elector clubs. Now, this is no poorly. Because if we examine its structure glory, we could see that it symmetric eso the disciples actually cancel out. So there is no net polarity and there you go.

So let's go over the inter american forces in the east here we have ethanol. So for ethanol or ethyl alcohol, we have oxygen bonded to hydrogen. So we have oxygen bonded hydrogen. We have a highly electric negative oxygen wanted directly to hydrogen, which is not very electric negative. So therefore this is a highly polar bond. And this kind of bar with hydrogen is going to f or participates in hydrogen bonding. So the main force and the strongest influence on the properties of ethanol, this hydrogen bonding. So now we have phosphate. So for fast fame, there's nobody compare On the phosphorus but it's bonded to three urgent. So this one's a tribunal parameter shape and you can see that there is a net diet hole in which the electrons are pulled towards the phosphorus who is phosphorus is more electro negative than hygiene. But then we have the last molecule. So for this molecule, sensors in that die poll, this means that the main forces that act between the molecules are diaper diaper forces in which the negative and interact with a positive end of a neighboring molecules. So then we have sulfur hexafluoride. So sulfur hexafluoride has polar bonds. But you'll notice that when we draw out the bond disciples, all of them are pointing in different directions and they canceled. Well, so that means that overall this is non polar. So therefore the main molecular force is going to be one dispersion forces. So these are the forces of attraction that arise due to for generations and the electron density around the atoms. So those are the weakest type of inter molecular forces, because this is a non polar.

Explanation for the question. Yeah we have to identify the thai are types of inter molecular forces and then select the substance which is greater boiling point from each pair. So here in part A. We have given substances are C three H eight all and beauty and butane. C four S. Train. So here in this given pair the inter molecular enter molecular forces in both molecules, both molecules as dispersion forces and a substance which is higher boiling point is N butane because you test larger size and greater surface area. Okay, next for part B. S. We have given substances are die a tile eater. Here's formula is CS three CS 2 or CS two CS 3 And the next one is 1 beautiful and use formula Ezio CS three CS 2 CS two & c. s. two. Oh it and this given pair here are dying it. I peter has here die by the terrorists die paul, die paul di paul. The whole day I fall in dispersion forces forces. And next we have you can all yes hydrogen bonding hydrogen bonding along with along with die paul die paul and this person forces. So when we will compare this vote inter molecular forces present in each given pale. So the molecule saving hydrogen bonding the molecule which is hydrogen hydrogen bonding will have higher boiling point. So that is. And beauty north. And you to know. And next to we have part C. We have given pale is s. 0. 2 R. s. 0. 3 Sulfur dioxide and sulfur dioxide is 03. So cell phone. Try oxide. Yes Die paul self try oxide. His dispersion forces. Yeah dispersion forces. And sulfur dioxide has Die paul di paul. Okay. And dispersion forces. So here sulfur dioxide is this present forces. So sulfur trioxide will be. Can say that they saw a tree sulfur trioxide. We'll have higher. Hi you're boiling burning point because it is larger size. Yeah. Uh huh. Larger size. And next we have body Given pair a molecules or c. two c. O. This is foggy. Our next one is formally height is to see oh and here 14 contained Die Paul, Die paul, di paul and dispersion forces. And for men the height have also die cold dive all and dispersion forces. So here for jim we'll have higher boiling point because it is larger size. So it is are you boiling point because it is larger size. Mhm.


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