2. The solubility of the salt Ba(IO3)2 in water at 298 K is 8*10-4 mH2O.
Determine:
a) the solubility product of this salt;
b) its solubility in a 0.03 m solution of Ba(NO3)2;
if the activity coefficients of the Ba2 and IO3- ions, depending on the ionic strength of the solution, have the following values:
I, mol*kg-1 0.0024 0.09 0.10
yBa2 0.72 0.32 0.30
yIO3- 0.96 0.81 0.80

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