The following data are available for mean activity coefficients of single electrolytes in water at 25C. Compare

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The following data are available for mean activity coefficients of single electrolytes in water at 25°C.

Molality  0.1 0.770 0.2 0.718 0.3 0.688 0.5 0.649 0.6 0.8 1.0 0.637 0.618 0.604 Y+ CrCl3 0.331 0.298 0.294

Compare these data with the predictions of the DebyeHuckel limiting law, Eq. 9.10-15, and Eq. 9.10-18 with βa = 1 and δ = 0.1|z+z−|.

In + = -a|z+z-| (9.10-15)

In 7+  altz-\VI 1 +  +1 (9.10-18)

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