Polar See the Related Questions to the left for more information about how to determine if a molecule is polar or non-polar.
Chloromethane is actually a polar molecule except for the case of tetrachloromethane. This is because the polar C-Cl bond is canceled out by the tetrahedral symmetry.
The chlorine atom withdraws the electron pair of C-Cl bond which creates a net dipole moment in the same direction.
No, methanol is more polar due to high electronegativity of oxygen and attachments of a carbon and a hydrogen atom to the oxygen atom.
no it is less polar than water
Yes.
The chemical bond between carbon-chlorine has an electronegativity difference of 0.61. The bond between carbon-hydrogen has a difference of 0.35, thus is less polar than the carbon-chlorine bond.
Methane is CH4 or H-CH3 Ethane is CH3-CH3 When compared to H- (in methane), the CH3- (methyl group in ethane) is more electron donating and hence ethane is more basic than methane.
no, water is more polar than ammonia.
Yes, ethyl acetate is more polar than toluene.
no. lol
Chloromethane has a permanent dipole because of the chlorine molecule attached to the carbon, which means the chlorine has a partial negative charge while the carbon has a partial positive charge. These charges allow certain molecules of chloromethane to be "attracted" to other chloromethane molecules' oppositely charged regions (dipole-dipole interactions). These attractive intermolecular forces hold the molecules together and need to be broken in order for chloromethane to reach its boiling point, which requires a greater input of energy (heat). In comparison, ethane only has the weakest intermolecular interactions holding the molecules together (van der Waals attractive forces / London forces). London forces are weak compared to dipole-dipole interactions and so less energy (heat) is required to break the bonds. The result is that chloromethane has a higher boiling point than ethane because more heat is required to break the intermolecular bonds between chloromethane than is required to break the bonds between ethane.
Yes, methanol is CH3OH and methane is CH4. Methanol is polar (because of the O-H bond) and methane is non-polar (because it is a hydrocarbon.) Water (which is polar) will dissolve other polar things, but not non-polar things.
The chemical bond between carbon-chlorine has an electronegativity difference of 0.61. The bond between carbon-hydrogen has a difference of 0.35, thus is less polar than the carbon-chlorine bond.
Ammonia (NH3) has hydrogen bonding intermolecular forces, whereas methane (CH4) does not. In addition, ammonia is polar, and so also has dipole-dipole forces and methane does not. Thus, it takes more energy (higher temperature) to boil and melt ammonia than it does methane.
Acetonitrile is slightly more polar than methanol. This is due to the presence of the C-N triple bond in acetonitrile (CH3CN).
Methane is CH4 or H-CH3 Ethane is CH3-CH3 When compared to H- (in methane), the CH3- (methyl group in ethane) is more electron donating and hence ethane is more basic than methane.
No. methane is not soluble in water, as methane is a non-polar hydrocarbon and water is a polar solvent.
Metahne does not have a higher boiling point than methane. Fluoromethane, CH3F, has a boiling point of 195K, -78.2C, methane, CH4, has a boiling point of 109K approx -164 C. I make that fluoromethane has a higher temeprature boiling point than methane. This is what you would expect, London dispersion forces will be greater in CH3F as it has more electrons than CH4. CH3F is polar and there will be dipole dipole interactions which will not be present in CH4.
yes toluence is more polar than chloroform
Yes, CH4 is "methane" A covalent compound is a compound in which the atoms that are bonded share electrons rather than transfer electrons from one to the other. Ammonia and water are also Covalent. http://misterguch.brinkster.net/covalentcompounds.html
no, water is more polar than ammonia.
Oxygen is more electronegative than sulfur, resulting in more polar bonds with hydrogen.