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15.1 Exercise 41

Avg difficulty 2.5

Perform these calculations for nickel(II) carbonate. (a) With what volume of water must a precipitate containing NiCO3 be washed to dissolve 0.100 g of this compound? Assume that the wash water becomes saturated with NiCO3 (Ksp = 1.36 ×\times 10–7).

(b) If the NiCO3 were a contaminant in a sample of CoCO3 (Ksp = 1.0 ×\times 10–12), what mass of CoCO3 would have been lost? Keep in mind that both NiCO3 and CoCO3 dissolve in the same solution.

OpenStax Chemistry 2e, 15.1 Precipitation and Dissolution, exercise 41

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Adapted from General Chemistry © 2019 Rice University. Licensed under CC BY 4.0. Sources: Chemistry 2e, Chemistry: Atoms First 2e. Imported at revision 32c7196.