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3. A tablespoon (about 15.0 mL) of sodium chloride, a common table salt, is dissolved in water. What is the change in enthalpy (in kJ) o this dissolution process? (dNaCl(s) = 2.16 g cm^-3 NaCl(s) → Na^+(aq) + Cl^-(aq) ΔH = 3.87 kJ mol^-1