Two chloride ions and two sodium ions are in water, the "effective charge" on the chloride ions (CI) is -2.00 - 1021c and that of the sodium ions (Na) is +2.00 x 10-21 c. (The effective charge is a way to account for the partial shielding due to nearby water molecules.) Assume that all four ions are coplanar. 30 45.0 Nato where a 0.290 nm, b 0.770 nm, and c 0.580 nm. What is the direction of electric force on the chloride lon in the lower right-hand corner in the diagram? Enter the angle in degrees where positive indicates above the negative xaxis and negative indicates below the positive xaxis