how do you know the stronger dipole moment between molecules?
My question came from this: to determine what has a stronger dipole dipole moment, you need to find out what of the molecules has stronger dipole moment... Thanks.:)
http://en.wikipedia.org/wiki/Dipole#Molecular_dipoles
To determine which molecule has a stronger dipole moment, you need to consider the difference in electronegativity between the atoms in the molecule and the molecular geometry.
1. Electronegativity Difference: The first step is to compare the electronegativity values of the atoms involved in the bond. Electronegativity is the tendency of an atom to attract electrons towards itself. The greater the difference in electronegativity, the stronger the dipole moment.
2. Polar Bonds: Next, determine if the molecule has polar covalent bonds. A polar bond arises when there is an unequal sharing of electrons between two atoms due to differences in electronegativity. If a molecule has multiple polar bonds, it will possess a dipole moment.
3. Molecular Geometry: Finally, consider the molecular geometry or shape of the molecule. In some cases, the molecular geometry can influence the overall dipole moment. For example, if the polar bonds in a molecule are symmetrical and cancel each other out, the molecule may not have a net dipole moment, resulting in a weaker dipole moment.
By analyzing the electronegativity difference, presence of polar bonds, and molecular geometry, you can determine which molecule has a stronger dipole moment. Keep in mind that these factors are interrelated, and a comprehensive evaluation is necessary to make an accurate comparison.