The values for effective diameters and activity coefficients for ions at 25°C are given in the table below. Activity Coefficient at Indicated Ionic Strength Ion ax, nm 0.001 0.005 0.01 0.05 0.1 Ca2+, Cu2+, Zn2+, Sn²+, Mn²+, Fe²+, Ni²+, Co²+, Phthalate² 0.6 0.870 0.748 0.676 0.48 0.40 Pb2+, CO3², SO3², C₂04² 3+ Al3+, Fe 3+, Cr3+, La³+, Ce³+ ' Th, Zr, Ce+, Sn4+ ' Use the Debye-Hückel equation 0.45 0.868 0.741 0.665 0.45 0.36 0.9 0.737 0.540 0.443 0.24 0.18 1.1 0.587 0.348 0.252 0.10 0.063 0.51Z√ -log Yx 1+3.3ax√ to calculate the activity coefficient of
The values for effective diameters and activity coefficients for ions at 25°C are given in the table below. Activity Coefficient at Indicated Ionic Strength Ion ax, nm 0.001 0.005 0.01 0.05 0.1 Ca2+, Cu2+, Zn2+, Sn²+, Mn²+, Fe²+, Ni²+, Co²+, Phthalate² 0.6 0.870 0.748 0.676 0.48 0.40 Pb2+, CO3², SO3², C₂04² 3+ Al3+, Fe 3+, Cr3+, La³+, Ce³+ ' Th, Zr, Ce+, Sn4+ ' Use the Debye-Hückel equation 0.45 0.868 0.741 0.665 0.45 0.36 0.9 0.737 0.540 0.443 0.24 0.18 1.1 0.587 0.348 0.252 0.10 0.063 0.51Z√ -log Yx 1+3.3ax√ to calculate the activity coefficient of
Chapter11: Dynamic Electrochemistry
Section: Chapter Questions
Problem 10P
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Use the Debye-Hückel equation to calculate the activity coefficient of
a. Fe3+ at u = 0.068.
Activity coefficient =
b. Pb2+ at u = 0.038 .
Activity coefficient =
c. Ce4+ at u = 0.061.
Activity coefficient =
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