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Estimate the mean ionic activity coefficient and activities of Na+ and Cl– (originating from NaCl) in...

Estimate the mean ionic activity coefficient and activities of Na+ and Cl– (originating from NaCl) in a solution that is 0.010 mol kg–1 NaCl(aq), 0.020 mol kg–1 Na2SO4(aq) and 0.030 mol kg–1 KCl(aq). The three salts undergo complete dissociation. Use the Debye-Hückel limiting law for aqueous solutions at 25.0 degrees C.

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