the dipole moment of the water molecule (h2o) is 6.17×10−30c⋅m. consider a water molecule located at the origin whose dipole moment p⃗ points in the positive x direction. a chlorine ion (cl−), of charge −1.60×10−19c, is located at x=3.00×10−9 meters. assume that this x value is much larger than the separation d between the charges in the dipole, so that the approximate expression for the electric field along the dipole axis can be used.