Two chloride ions and two sodium ions are in water, the "effective charge" on the chloride ions (CI") is –2.00 × 10-21 c 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. Na+ 30.0 Na+ o 45.0 where a = 0.250 nm, b = 0.740 nm, andc = 0.620 nm. What is the magnitude of electric force on the chloride ion in the lower right-hand corner in the diagram? IN
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