TABLE 3.4 PARAMETER a AND INDIVIDUAL ION ACTIVITY COEFFICIENTS Ion Size Parameter, a Ion Activity Coefficients Calculated with (2) of Table 3.3 for Ionic Strength 10 4 10 3 10-2 0.05 10-1 (Å)" 9 H+ Al3+, Fe 3+, La 3+, Ce3+ 0.99 0.97 0.91 0.86 0.83 0.90 0.74 0.44 0.24 0.18 " 98 Mg2+, Be²+ 0.96 0.87 0.69 0.52 0.45 6 Ca2+, Zn2+, Cu2+, Sn2+, Mn2+ 0.96 0.87 0.68 0.48 0.40 Fe2+ 5 Ba2+, Sr2+, Pb2+, CO- 0.96 0.87 0.67 0.46 0.39 Na+, HCO3, H2PO4, CH3COO 0.99 0.96 0.90 0.81 0.77 SO, HPO 0.96 0.87 0.66 0.44 0.36 PO 0.90 0.72 0.40 0.16 0.10 3 K+, Ag, NH, OH, CI- 0.99 0.96 0.90 0.80 0.76 CIO, NO, I, HS-

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Chapter1: Chemical Foundations
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Assume that the concentration for both Ca+2 and SO42- was initially 1.0 x 10-3 M.  Using the activity coefficients, what are the activities for Ca+2 and SO42- ?

TABLE 3.4 PARAMETER a AND INDIVIDUAL ION ACTIVITY COEFFICIENTS
Ion Size
Parameter, a
Ion
Activity Coefficients Calculated
with (2) of Table 3.3 for
Ionic Strength
10 4 10 3 10-2 0.05 10-1
(Å)"
9
H+
Al3+, Fe 3+, La 3+, Ce3+
0.99 0.97 0.91 0.86 0.83
0.90 0.74 0.44 0.24 0.18
"
98
Mg2+, Be²+
0.96
0.87
0.69 0.52 0.45
6
Ca2+, Zn2+, Cu2+, Sn2+, Mn2+
0.96
0.87
0.68 0.48 0.40
Fe2+
5
Ba2+, Sr2+, Pb2+, CO-
0.96
0.87
0.67 0.46 0.39
Na+, HCO3, H2PO4, CH3COO
0.99
0.96
0.90 0.81 0.77
SO, HPO
0.96 0.87
0.66 0.44 0.36
PO
0.90 0.72
0.40 0.16 0.10
3
K+, Ag, NH, OH, CI-
0.99 0.96
0.90 0.80 0.76
CIO, NO, I, HS-
Transcribed Image Text:TABLE 3.4 PARAMETER a AND INDIVIDUAL ION ACTIVITY COEFFICIENTS Ion Size Parameter, a Ion Activity Coefficients Calculated with (2) of Table 3.3 for Ionic Strength 10 4 10 3 10-2 0.05 10-1 (Å)" 9 H+ Al3+, Fe 3+, La 3+, Ce3+ 0.99 0.97 0.91 0.86 0.83 0.90 0.74 0.44 0.24 0.18 " 98 Mg2+, Be²+ 0.96 0.87 0.69 0.52 0.45 6 Ca2+, Zn2+, Cu2+, Sn2+, Mn2+ 0.96 0.87 0.68 0.48 0.40 Fe2+ 5 Ba2+, Sr2+, Pb2+, CO- 0.96 0.87 0.67 0.46 0.39 Na+, HCO3, H2PO4, CH3COO 0.99 0.96 0.90 0.81 0.77 SO, HPO 0.96 0.87 0.66 0.44 0.36 PO 0.90 0.72 0.40 0.16 0.10 3 K+, Ag, NH, OH, CI- 0.99 0.96 0.90 0.80 0.76 CIO, NO, I, HS-
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