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Which of the following molecules is considered non- polar?CIBylIOZQC1ChKChIb3ha" 1 onlyiJlb; 2 onlyHllic 3 onlyldl ] ank 2Ilel 1 and 3fll 2 and3g All pf the ab...

Question

Which of the following molecules is considered non- polar?CIBylIOZQC1ChKChIb3ha" 1 onlyiJlb; 2 onlyHllic 3 onlyldl ] ank 2Ilel 1 and 3fll 2 and3g All pf the above

Which of the following molecules is considered non- polar? CI Byl IOZQ C1 Ch KCh Ib 3 ha" 1 onlyi Jlb; 2 only Hllic 3 onlyl dl ] ank 2 Ilel 1 and 3 fll 2 and3 g All pf the above



Answers

Classify each of the following molecules as polar or nonpolar: (6.8,6.9) a. $\mathrm{GeH}_{4}$ b. $\mathrm{I}_{2}$ c. $\mathrm{CF}_{3} \mathrm{Cl}$ d. $\mathrm{PCl}_{3}$ e. $\mathrm{BCl}_{3}$ f. $\mathrm{SCl}_{2}$

So what's first of all we need to Draw the three Monaco shapes from Lewis structures and determine the election negativity difference between the atoms and bonds. And then we're going to determine if these molecules have dug for a moment. So the first one the hydro knee my own. So you can see the more electro negative adam is pointing in one direction. It's pulling all the elections towards. This does have a dark moment. So the negative event is towards the oxygen which is more electro negative in the hydrogen. For this one, this is a seesaw molecule. So we'll compare the election activities. But let's take a look at the chart here. So electro negativity differences about one that actually makes the polar. So you can see the more election of adam is the chlorine pulling the electrons towards the so there is a slight typo going that way. So this should be poor for this one. We have 10 attached to three chlorine. So we're going to look at the electric negativity. So there is a big enough difference to make that polar. So the clients are all pointing in general towards this direction. So this is a polar molecule within overall back home for this one. Let's take a look at the molecular geometry. So this is going to end up being square planter because it has two lone pairs of four months to the center adam, all of the chlorine are pulling in opposite opposite direction. So even if it were a polar bond, it wouldn't have a net die pool. So if you want to determine if this is it followed by let's calculate what the electric conductivity differences. Mhm Yeah. Mhm. But we end up with .2. Mhm. So we see that becomes non polar. So these are actually non polar bonds as well. So no polar bonds, no doubt for that one. And for this one we have iodine and chlorine. And this is a T shaped molecule. You can see that the disciples are going to cancel out if they're pulling in opposite directions. But we can determine if the bond is puller. So let's compare the electric negativity ease. So we have 3.11 3.16 -2.66. Uh huh. So we get .5 and then let's look at what that would be. So that's actually polar. So it is a polar bond but it is not a overall polar molecule. So for this one you can see we have 123456 electron dense areas, But 200 alone Paris. So that's again a square planter. So these diapers will cancel out if there are any. And then we can compare the election negativity different. So it looks like that's greater than one. So when it's greater than one, it definitely is going to be colder. So these are polar but they're pointing in different directions because basically this is going to be like this molecule here it is square. So it's the more electro negative florida pummeling the electrons towards them and these are going in opposite directions so they cancel out. So there's no net terrible moment for this molecule for this one is this is a bad molecule. And then we're going to look at the election activity differences. The flooring should be more because the flooring is the most electro negative element on the periodic table. So if we go here and compare that, we can see that chlorine and sulfur have an election dick activity difference, that looks like it should be enough. Yeah. Okay, so we get 1.4. So it is enough to be puller. This is overall polar diapered going that way. So it's a polar molecule has poor bonds.

Okay, so here we're gonna be looking at a few molecules to figure out if they're polar or not. So in order to determine whether or not a molecule is polar, you have to determine two things. In order to be polar, polar bonds have to exist. So to figure out whether or not a bond is polar, we can look at a table of Paul ings electro negativity. And we're looking for electric negativity, differences between two atoms that air between 0.4 and 1.7. And if we haven't electro negativity difference within that ballpark, then we do have a polar bond. So, apart from having polar bonds, the other thing that a molecule needs in order to be polar is to have a net dipole moment. So what that means is, if I have to polar bonds but say they're each tugging 180 degrees opposite of each other. Then overall, the molecule will not be polar because while I have polar bonds, the direction of the magnitude of those is going to cancel each other. So let's take a look at C H three CEO. This is a tetra huger molecule that looks like this. So here the key bonds realizes the carbon chlorine bond and this is very polar up towards the Korean. So this molecule will be polar overall because it has a polar bond and there are no other polar bonds to cancel it out. And so there is a net dipole moment straight up. The next species will look at is ch two c l two. This will be a very similar drawing. But here we have one extra clarion instead of the hydrogen over here. So these two bonds are also going to be polar, the carbon chlorine in the direction of the bond. But then our net dipole moment here is going to be an average of these two. So are net Dipole moment will be going somewhere this direction It's basically averaging those two vectors. So this is a polar molecule overall so well, right? Yes, to that one and yes to this one. And the next is S 03 Here there's a sulfur in the middle with three oxygen's, that air double bond to the outside. So the molecular Jama tree here is a tribunal plainer, so it's basically a flat triangle, so While these are polar bonds, they actually get canceled out because they are all net opposing in direction and they're the same exact magnitude. So here we do not have a poet molecule. Next, we're looking at H c h o which will look like this. Okay, so here the carbon oxygen bond is polar towards the oxygen and there are no other deep holes in the molecule. So here is our net dipole moment. And because we have a net dipole moment, we are polar overall. The next species will look at is HBR hydroponic acid. This is just a single simple single double bond between the hydrogen and the bro Me in. And that is very polar towards the bro, mean? And so there we have ah, polar bond. We don't have any other polar bonds that air equal and opposite opposed to it. So we do have a net dipole moment, So yes, this is polar overall. Then we'll look at water h 20 here. We want to draw this and what's called the bent configuration because the Elektronik geometry is a tetra hydro. But the molecular geometry is bent. So here we do have two polar bonds that are each going at the oxygen. And what that's going to do is give us a net dipole moment. That is straight up when you average those two individual dipole moments together. So then yes, this is polar overall, because we have a net dipole moment straight up. Well, look at ch 30 h with the group up here h h each So here the main polar bond is between the carbon and oxygen. That's gonna be going straight up. Andare are no other polar bonds here to counter that net or that die poll. So the net dipole is just straight up. So yes, this is also polar. The last one we look at is CBR four carbon toucher, bro mad Here we have the carbon in the center and now we're just going to surround this with bro means And once again, if you look at the molecular geometry, here is a tetra hydro. So while all of these bonds are polar, they're all polar towards the bro means so every single one of these is polar. But they are all arranged in unequal distribution around the carbon and so they're all equal in magnitude because they're all carbon roaming bonds and because they're arranged evenly around the carbon. The net effect is that those all are going to cancel out and you'll see this anytime you have. Ah, center Adam with, say, four identical things and no electron groups around it. Anytime you have a Tetra Hydro, we're all four outside. Things are the same. Then they're all going to cancel just like this. So even though they all are polar, there's not a net dipole moment because they all cancel out, so no.

Answer for the Boston polar mole Cules are but it is C is three c. L is a polar molecule on next, but we is polar molecule C is to see L and part C. SRE party is also polar molecule edge C h o. But he is a polar molecule. It's PR, but if and this polar molecule ich to all and but she is also polar, more killed C is three or it's minimal. These are polar more tools from the given list.

Okay, so we're asked to determine which molecules are polish. Let's start by drawing out there Lewis structures. So for ch three c o carbon in the most Electra Negative. So it's put that up sensor catching two or three Hodgins and then a single corrine coin satisfies all that role. Well, if you look at this, we know that born is more electron. I could have been hydrogen. So because of this, our molecule is polar report. Beat your deal. We'll feel it. Louis. Structure that looks like this. But if you compare, it's Elektra. Negative negativity. We see that flooring is more electro negative. Ben Coyne. So this makes our molecule fuller for and Theo three. We have a nitrogen attached to three corinne, and then we have an additional loan pair. Okay, because we haven't, uh and no one pair in our central Adam, we know that this molecule is polar now for part team have be a freak. Well, B is one of the interesting molecules because it doesn't satisfy it all kept room it actually, it only or like a little tongue. And because of our cemetery, this molecule is non polar. Now, for part five. We have to. Let's put our Carmen in the centre, separated by two on DDE. That's it for isn't good. 17. So it has seven billion to work, John. We'll tow it out too. But six are actually four, which is the number of valence electrons in our carbon. But I give this a total of 14 15 16 17 18. Total real until John drugs out. We have already too, bones. So that's minus four. If you additional or which gives us on a rate and remaining, uh, remaining 14 billion electron. Okay, now it's ad are really have a chance to our terminal. 0.13456789 10 11 12 13 14. But this doesn't satisfy it. All that rule for carbon. So what? We can do it at an additional bond. What does that get? Give us 24 68 10 12 15 14 15 16. Okay, let's actually remove a volunteer and in a packed into our carbon. And then we see that far. Carve. It has a long pears. Um, all right, suffers are the metric. So this molecule is non polar


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