103. Solving a chemistry problem

103. Solving a chemistry problem

237. What mass of sodium oxalate should be added to 100 ml of CaCl2 solution of concentration 1 ∙ 10-3 mol/l with ethylenediaminetetraacetic acid of concentration 1.5 ∙ 10-3 mol/l to form CaC2O4 precipitate if pH is 7?

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