easterisland875 easterisland875

12-03-2024
Chemistry

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Calculate the maximum lead (Pb) concentration (in ppb Pb) in hard water with 150 mg/L calcium carbonate. How does this compare to the EPA MCL for lead in drinking water?

• Assume 25°C

• At 25°C, the solubility product constant for PbCO3 is Ksp = 7.40 × 10–14

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