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tsk tsk
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A week ago
Calculate the minimum concentration of Cr3+ that must be added to 0.095  M NaF in order to initiate a precipitate of chromium(III) fluoride. [ Ksp(CrF3)  = 6.6 × 10–11]


0.023 M



0.032 M



7.7 × 10–8 M



2.9 × 10–9 M



6.9 × 10–10 M

Textbook 
Chemistry: Atoms First

Chemistry: Atoms First


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twogat123twogat123
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