Ok, while rummaging through the internet, trying to find out the magnitude of water's pull on charged objects, I came across two different equations. One seemed more helpful, because it seems specific to water polarity, and the other seemed a bit generic. Helpful one: F= q [(2kp)/m^3] A reply from yahoo answers F is force in newtons q is the charge of affected ion k is the coulomb force constant p is water's dipole moment (C.m.) m is the distance between the centers of the two objects Generic one: E = k (q/r^2) (unit vector) Wikipedia: electric fields When looking closer, it seems that the two are the same, but what is the deal with one's distance being cubed and the other squared? Then, only one with unit vector multiplied in, and other has water's dipole moment. Are they the same? Is the unit vector water's dipole moment? Is the cubed distance an error, or a fundamental difference?