Moreover, what is a net dipole moment?
Net dipole moment is simply sum of alldipolemoments in molecule. Dipole moment determinesif thebond is polar or nonpolar. However, it's net dipolemoment,that determines, whether the molecule is polar or not. Agoodexample is carbon dioxide.
Similarly, is acetone a polar or nonpolar molecule?
Water is a polar molecule, whilecarbontetrachloride is a nonpolar molecule. If we use the'likedissolves like' concept, then acetone is bothpolarand nonpolar. This dual character ofacetone is dueto its ability to make hydrogen bonds withwater and the presenceof two methyl groups.
In the case of acetone, it's slightlymorepolar than water. Water is also apolarsolvent.