The dipole moment of the water molecule ($H_2O$) is 6.17 $\times$ $10^{-30}$ C $\cdot$ m. Consider a water molecule located at the origin whose dipole moment $\overrightarrow{p}$ points in the $+x$-direction. A chlorine ion (C1$^-$), of charge $-1.60 \times 10^{-19}$ C, is located at $x =$ 3.00 $\times 10^{-9}$ m. Find the magnitude and direction of the electric force that the water molecule exerts on the chlorine ion. Is this force attractive or repulsive? Assume that $x$ 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 derived in Example 21.14 can be used.