Paul J. answered • 05/19/21
Chemistry Tutor/Bachelor's of Science in Forensic Chemistry
2-chloropentane is going to be a 5-carbon chain with a chlorine atom bonded to the carbon at position '2'. You can determine this because the parent name of the molecule is pentane, and the two indicates the carbon that the chlorine is bonded to.
Chlorine has an electronegativity of 3.16, and carbon has an electronegativity of 2.55, giving us an electronegativity difference of 0.61 (remember than any bond that has an electronegativity difference between 0.5 and 1.5 is generally considered to be polar covalent).
Since chlorine has the highest electronegativity, it will have a stronger affinity for electrons (giving it a partial negative charge). Since carbon has a lower electronegativity than chlorine, its electrons will be drawn to the halide, giving it a partial positive charge. There will be a dipole moment between carbon 2 and the halogen, which should be drawn pointing in the direction of the halogen. (dipole moments are drawn as arrows with a perpendicular line going through the tail of the arrow). Also be sure to include the partial negative and partial positive charges on the carbon and chlorine atoms.
Paul J.
Let me see if I can attach one hang on05/20/21
Paul J.
Unfortunately it does not let me attach images to the answer. The structural formula for 2-chloropentane is CH3CHClCH2CH2CH3. Draw the molecule using that structural formula and then draw the bond dipole for the C-Cl bond as I mentioned in my answer. Be sure to include the partial positive charge on the carbon atom using this symbol: δ+, and the partial negative charge on the chlorine using this symbol: δ-.05/20/21
Hejn B.
thank you that helped a lot is it possible for you to input an image?05/19/21