Concentration of calcium in a sample may be determined by precipitation using the chromate ion, Cro...
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Concentration of calcium in a sample may be determined by precipitation using the chromate ion, Cro Ca²+ (aq) + CrO² (aq) → CaCrO₂ (s) A chemist combined 0.475 L of an unknown calcium solution with an excess of ammounium chromate. This resulted in the precipitation of calcium chromate. The mass of the precipitate was 266.3 mg. What was the molar concentration of Ca²+ in the original sample? [Ca²+] = M Concentration of calcium in a sample may be determined by precipitation using the chromate ion, Cro Ca²+ (aq) + CrO² (aq) → CaCrO₂ (s) A chemist combined 0.475 L of an unknown calcium solution with an excess of ammounium chromate. This resulted in the precipitation of calcium chromate. The mass of the precipitate was 266.3 mg. What was the molar concentration of Ca²+ in the original sample? [Ca²+] = M
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