23. Solving a chemistry problem

23. Solving a chemistry problem

1. To 1 liter of a solution containing 1•10-5 mol/l AgNO3, add 100 ml of 1 M Na2CO3 solution. Will Ag2CO3 precipitate? How much 1 M Ca(NO3)2 solution must be added to quantitatively (>99.9%) coprecipitate silver? PR(Ag2CO3)=6.15•10-12, PR(CaCO3)=1.2•10-8
Answer: D=1950; V(Ca(NO3)2)=0.33ml

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