Determine a saturated solution of zinc arsenate

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Consider a saturated solution of Zinc arsenate, Zn3(AsO4)2, in which the following reactions can occur: Zn3(AsO4)s (s) --> 3Zn+2 + 2AsO4 -3 Ksp=1.0e-27 AsO4 -3 + H2O ---> HAsO4 -2 + OH- Kb1=3.1e-3 HAsO4 -2 + H2O ---> H2AsO4- + OH- Kb2=9.1e-8 H2AsO4- + H2O ---> H3AsO4 + OH- Kb3=1.7e-12

Reference no: EM13180674

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