What is the dipole moment of ethanal?

The dipole moment of ethanal (acetaldehyde) is approximately 2.69 Debye. This molecular dipole arises due to the polar C=O bond, with the oxygen atom being more electronegative than the carbon atom, creating a separation of charge. Additionally, the C-H bonds contribute to the overall molecular geometry, which does not cancel out the dipole, resulting in a net dipole moment.