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19. A. Solid calcium nitrate is slowly added to 175 mL of a 0.0676 M potassium carbonate...

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Chemistry

19. A. Solid calcium nitrate is slowly added to175 mL of a 0.0676 Mpotassium carbonate solution. The concentration ofcalcium ion required to just initiateprecipitation is _____ M.

B. Solid zinc acetate is slowly added to125 mL of a 0.0515 Mpotassium cyanide solution. The concentration ofzinc ion required to just initiate precipitationis _____ M.

C. Solid sodium hydroxide is slowly added to150 mL of a 0.0435 Mcopper(II) acetate solution. The concentration ofhydroxide ion required to just initiateprecipitation is _____ M.

Answer & Explanation Solved by verified expert
4.4 Ratings (867 Votes)
A Let us consider a reaction CaNO3 K2CO3 CaCO3 K2NO3 We know Ksp of CaSO4 336 109 CaCO3 Ca2 CO32 CO32 00676 M We know Ksp Ca2 CO32 336 109 Ca2 x    See Answer
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