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Why does SO2 molecule have a dipole moment and a CO2 molecule doesn't have a dipole moment?
Wiki User
∙ 13y ago
Think about the amount of valance electrons. Sulfur has two more than Carbon. Carbon wants to share its four valance to make it feel like it has 8 and does so with oxygen. Because there are no lone pair electrons left on carbon it is a linear structure and has no dipole (both oxygen's stick out giving bot ends a pseudo negative charge).
Sulfur on the other hand lives in resonance with a double bond on one oxygen switching back and forth (look into resonance if you don't understand this). It keeps two of its electrons giving it a lone pair. this lone pair pushes the oxygen atoms downward giving the Sulfur end a pseudo charge and the oxygen end a pseudo charge.
Happy carbon = linear molecule = no dipole
Unhappy Sulfur = bent molecule = dipole
Please see the related link for more information.
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoThe S-O bonds are polar because oxygen is more electronegative than sulfur.
Unlike CO2, the molecular geometry of SO2 is bent rather than linear, giving SO2 a net dipole moment.
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Which of these molecules has an overall dipole mome?
An overall dipole moment is H2S.
Why does CO2 have a permanent dipole-dipole interaction?
Carbonate (CO3 2-) is trigonal planar with a central C and three O's 120 degrees from each other (D3h symmetry). All the O's have the same electron density because of resonance. This gives carbonate no dipole.
Why is a molecule of CO2 nonpolar even though the bonds between the carbon and the oxygen atoms are polar?
CO2 is a linear molecule...the C in the middle and the the oxygens double bonded on opposite ends.... the electronegativities of the oxygens cancel each other out and Dipole moment becomes zero. http://en.wikipedia.org/wiki/File:Carbon-dioxide-2D-dimensions.svg (picture from wikipedia).
What substances would exhibit dipole-dipole intermolecular force bcl2 cf4 co2 cl2 nh3?
co2
What is dipolar nature of water?
A dipole refers to two electrostatic charges which are separated by distance. In chemical compounds a dipole refers to unequal distribution of charge across a molecule that leads to an effective dipole often due to vector sum of bond dipoles.
Which molecule out of CO2 and So2 possesses zero dipole moment.explain with reason?
Dipole moment of CO2 molecule is zero,becoz it is linear molecule,whereas SO2 is angular molecule having dipole moment 1.61 D....:)
Which molecule has a dipole moment H2 CO2 F2 SO2 BF3?
SO2 is bent shaped and has a net dipole moment.
Which of these molecules has an overall dipole mome?
An overall dipole moment is H2S.
What nonpolar gases contain polar bonds H2 He O2 N2 or CO2?
CO2 has ploar carbon-oxygen bond, but the molecule is non-polar as the dipole moment cancel off.
Does the shape determine the dipole moments?
yes. if the molecule has a linear shape, then it is not polar (most of the time). if the molecule has different shaped elements in it, then it is polar (most of the time). hope i helped! ok so yeah your correct
Which is dipole molecule hcl cl2 ccl4 CO2?
hcl
Why does CO2 have a permanent dipole-dipole interaction?
Carbonate (CO3 2-) is trigonal planar with a central C and three O's 120 degrees from each other (D3h symmetry). All the O's have the same electron density because of resonance. This gives carbonate no dipole.
Which of the following molecules has a polar covalent bond?
H2 has non polar covalent bond. H2O and HCl are polar covalent. LiI-- thats ionic- so is not molecular under normal conditions- if a molecule were formed in gas phase then that would be polar too.
What is a active gas?
Absorption of energy from IR radiation can only occur when the wavelength of radiation and the wavelength of the bond vibration match. If a molecule has symmetry...for example no dipole, we say it is IR inactive. CO2 has no dipole....this would be an IR inactive gas...Cl2 as well. A gas that has a dipole would be IR active. Propene would be a nice example of an IR active gas.It possesses a dipole. One would see a signal around 1650.A:CO2 has no permanent dipole. However, when CO2 undergoes a bending vibration, its dipole moment changes from zero to some non-zero value. This vibration produces a change in dipole moment and is therefore IR active.
What is a infrared active gas?
Absorption of energy from IR radiation can only occur when the wavelength of radiation and the wavelength of the bond vibration match. If a molecule has symmetry...for example no dipole, we say it is IR inactive. CO2 has no dipole....this would be an IR inactive gas...Cl2 as well. A gas that has a dipole would be IR active. Propene would be a nice example of an IR active gas.It possesses a dipole. One would see a signal around 1650.A:CO2 has no permanent dipole. However, when CO2 undergoes a bending vibration, its dipole moment changes from zero to some non-zero value. This vibration produces a change in dipole moment and is therefore IR active.
Why so2 has a higher boiling point than CO2?
obviously S03 idiot cause it has a higher IMF due to its dipole to dipole and more oxygens. even so, it has a higher mass and you should at least check wikipedia lol, it has the numbers WHOEVER wrote the above comment is stupid. SO3 doesnt have dipole dipole retard cuz it isn't polar. The fact that SO3 has a higher b.p. than SO2 is b/c the LDF (London dispersion force) of SO3 is a greater IMF than the dipole-dipole force of SO2.
Why do greenhouse gases trap infrared radiation but not homonuclear molecules?
1) Absorption of IR radiation depends on the dipole moment of a molecule (which might be considered the tension on the shared electrons within the molecule). 2) In a homonuclear molecule (such as O2), the identical nuclei exert an identical pull on the shared electrons. The dipole moment is zero, and can interact with radiation of zero frequency and zero wavelength. Such radiation does not exist. 3) In a heteronuclear molecule such as water, the differing nuclei of oxygen and hydrogen exert an unequal pull on the shared electrons. This produces a non-zero dipole moment which is capable of interacting with infrared radiation, raising the molecule to a higher energy level. 4) Carbon dioxide (CO2) is a particular case. The oxygen atoms are at exactly opposite sides of the carbon. Although each side has a dipole moment, since the molecule is symmetrical it tends to cancel out. However, there is the possibility of movement of nuclei within the molecule. If the movement is symmetrical, there is no dipole moment. If the movement is asymmetrical, a dipole moment is temporarily produced. If there is infrared radiation present in the right orientation, interaction is possible. Therefore carbon dioxide is a fairly weak greenhouse gas. However, since it is being continually introduced into the atmosphere by human activity, its effect is being raised continually as well.
