Molecule AB has a bond length of 1.617A0 and a dipole moment of 0.38 D. The fractional charge on each atom (absolute magnitude) is (e0= 4.802 × 10–10 esu)

μ=dxδ0.38 x 10-18 =1.617 x 10-8cm x δδ=0.38×10-18 esu cm1.617×10-8 cm=0.235esu×10-104.802 x 10-10 esu ------100% ionic0.235x10-10esu  -------?0.235×10-10 esu cm4.802×10-10 cm×100=0.048×100=4.8%= 0.05