A solution of Na2CO3 is added dropwise to a solution that contains 1.21×10−2M Fe2+ and 1.48×10−2M...
A solution of Na2CO3 is added dropwise to a solution that contains 1.21×10−2M Fe2+ and 1.48×10−2M Cd2+ . What concentration of CO32− is need to initiate precipitation? Neglect any volume changes during the addition.
Express your answer with the appropriate units.
The solubility-product constants, Ksp , at 25 ∘C for two compounds [iron(II) carbonate, FeCO3 , and cadmium(II) carbonate, CdCO3 ] are given by the table
| Substance | Ksp |
| FeCO3 | 2.10×10−11 |
| CdCO3 | 1.80× 10−14 |
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A solution of Na2CO3 is added dropwise to a solution that
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The solubility-product constants, Ksp, at 25 ∘C for two compounds [iron(II) carbonate, FeCO3, and cadmium(II) carbonate,...
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A solution of Na2CO3 is added dropwise to a solution that contains 1.00×10-2 M Fe2+ and 1.49×10-2 M Cd2+. What concentration of CO32- is need to initiate precipitation? Neglect any volume changes during the addition. Ksp value: FeCO3: 2.10*10-11 Ksp value: CdCO3: 1.80*10-14 Which cation precipitates first? What is the concentration of CO32- when the second cation begins to precipitate?
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