All Questions
Tagged with dipole electronegativity
16 questions
-1
votes
2
answers
213
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Which one has a greater dipole moment: benzamide or benzoic acid?
My guess is that, since the relative electronegativities are similar, therefore the difference would arise only due to magnitudes of difference in electronegativities. And hence the strength should be ...
1
vote
0
answers
87
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Quantitatively Calculate Dipole Moment [duplicate]
Recently, I have been reading up on articles relating to the dipole moments of different molecules (specifically this). I see how they can get bond lengths and experimental dipole moments with ...
- 78
2
votes
0
answers
107
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Why is the intensity of the IR spectra of IBr higher than that of ICl?
Why is the intensity of the IR spectra of $\ce{IBr}$ higher than that of $\ce{ICl}$?
I know that the IR spectra intensities are proportional to the derivative of the dipole moment with internuclear ...
- 151
-3
votes
2
answers
7k
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Why is CH4 Nonpolar but CH2Cl2 is polar?
I keep reading that the reason why $\ce{CH2Cl2}$ is polar because due to its tetrahedral shape, the dipoles can not cancel each other out but doesn't $\ce{CH4}$ also have tetrahedral shape too? I ...
- 11
0
votes
1
answer
157
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Why must polar molecules be asymetrical? [duplicate]
As I understand, polarity in molecules comes from the difference in electronegativity or the ability of the atoms to attract eletrons so the electrons spend more time or are more probable to gravitate ...
- 27
1
vote
2
answers
888
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Which Oxygen atom in HCOOH (formic/methanoic acid) does Carbon donate its electrons to, to obtain a partial positive charge?
I was wondering if the Carbon atom in HCOOH (methanoic/formic acid) forms a positive partial charge by donating its electrons to both the Oxygen atoms, since they both possess a higher ...
- 33
1
vote
1
answer
3k
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Will there be change in electronegativity difference in C-O and C=O?
Is there any change in EN difference in C-O and C=O. If yes, why?
Does EN difference change if its bond is changed to single, double, or triple?
- 709
8
votes
1
answer
6k
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Why does C=O have a larger dipole moment than C-O?
Why does $\ce{C=O}$ have a larger dipole moment than $\ce{C-O}$?
According to me, dipole moment directly depends upon bond length and electronegativity difference. In $\ce{C=O}$ and $\ce{C-O}$, (I ...
- 709
0
votes
0
answers
324
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Why don't I get the same value of percentage ionic character of a particular molecule from different equations?
About the ionic character of a polar covalent compound Pauling gave two equations as
[1-$e^{.25(x_a - x_b)}] $%
[18$(x_a-x_b)^{1.4}$]%
Hanary and Smith gave the equation
[$16(x_a-x_b)+3.5(x_a-...
- 183
12
votes
2
answers
16k
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Does the dipole moment increase or decrease by increasing the bond length?
It is established the dipole moment is a result of multiplication of the magnitude of charges (Q) and the distance between them (r). What I understand is that when an electron and a proton get closer (...
5
votes
1
answer
2k
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Dipole Moment of Normal Water vs Heavy Water
The question is in the title itself.
My guess: Higher for Normal water.
My Reasoning: Internet told me Deuterium is more electronegative than Protium. So, there should be less difference between ...
- 1,140
12
votes
2
answers
2k
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Does 1-bromo-4-chlorobenzene have a permanent dipole moment?
My first thought was there would be a dipole moment as chlorine and bromine are unequal in electronegativity. I have since looked up the electronegativity of both chlorine and bromine through the ...
- 181
1
vote
1
answer
711
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Using covalent or ionic radius when calculating dipole moment
When the ionic character of a bond is above 50% should I use ionic radius instead of covalent one when calculating the dipole moment?
The formula I have for dipole moment is $\mu = \text{(% ionic ...
- 121
3
votes
1
answer
8k
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Relationship between dipole moment of a molecule and electronegativities of constituent atoms
I want to know if I can calculate the dipole moment of a molecule given the electronegativity values for the atoms comprising it.
I think that dipole moments determine the polarity of molecules, so ...
- 1,469
4
votes
1
answer
644
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Bending of water and methanol towards a charged objects
I just had a question about why does water, methanol or any other polar substances tend to bend towards the charged object.
I think it is because of a slight dipole dipole movement between the ...
- 350
15
votes
2
answers
54k
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Why is HCl not considered to have hydrogen bonding?
A molecule that has hydrogen bonding usually follows these two premises.
1.) There is a hydrogen atom involved
2.) Hydrogen must be bonded to a highly electronegative element which are nitrogen ($\ce{...
- 469