Consider a saturated colution of calcium oxalate

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Consider a saturated colution of calcium oxalate, CaC2O4, in which the following reactions can occur:

(CaC2O4)4 -2 (s) ---> Ca+2 + C2O4 -2 Ksp=1.3e-8

C2O4 -2 + H2O --> HC2O4- + OH- Kb1= 1.8e-10

HC2O4- + H2O ----> H2C2O4 + OH- Kb2=1.8e-13

Reference no: EM13180673

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