Are all/most organic compounds non polar?
Not all, certainly. Many are non-polar. Most, I don't know. It all depends upon how you define most. Acids, acid chlorides, amines, phenols, ketones, aldehydes, and the like are polar. There are a bunch of those around.
There are also compounds like sulfonic acids which are polar. Another couple of useful lab solvents that are polar are dimethyl sulfoxide (DMSO) and dimethylformamide (DMF).
To determine if a specific organic compound is polar or non-polar, you will need to consider the molecular structure and the presence of polar functional groups. Polar functional groups typically contain electronegative atoms such as oxygen, nitrogen, or sulfur.
One way to determine if a compound is polar or non-polar is by looking at its dipole moment. A dipole moment is a measure of the separation of positive and negative charges within a molecule. If a molecule has a significant dipole moment, it is likely polar.
Another approach is to consider the symmetry of the molecule. If a molecule has symmetrical geometry and no polar functional groups, it is likely non-polar. However, if the geometry is asymmetrical or there are polar functional groups present, the molecule is more likely to be polar.
Additionally, factors such as the presence of double or triple bonds and the overall molecular shape can also contribute to the polarity of organic compounds.
So, to determine if a specific organic compound is polar or non-polar, you should analyze its molecular structure, consider the presence of functional groups, and evaluate dipole moments and molecular symmetry.