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When NaF is slowly to a solution that is 0.025 M Ba2+ and 0.025 M Ca2+ what will the concentration of calcium be when the barium just begins to precipitate?


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  • Consider the following half-reactions and select the strongest oxidizing agent present: Sr2+(aq) + 2e- → Sr(s) E° = -2.89 V Cr2+(aq) + 2e- → Cr(s) E° = -0.913 V Co2+(aq) + 2e- → Co(s) E° = -0.28 V mürsel commented about 1 month ago