Question: I need help with these 2 questions please. please help. A groundwater sample contains 2.000mg/L of iron as Fe3+. What pH is required to precipitate

I need help with these 2 questions please.

I need help with these 2 questions please. please help. A

groundwater sample contains 2.000mg/L of iron as Fe3+. What pH is required

please help.

A groundwater sample contains 2.000mg/L of iron as Fe3+. What pH is required to precipitate all but 0.243mg/L of the iron at 25C ? Respond with 2 decimal places.. Type your numeric answer and submit Calculate the pH of a water at 25C that contains 0.579mg/L of carbonic acid. Assume that [H+]=[HCO] at equilibrium and neglect the dissociation of water. Round your answer to 3 decimal places

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Help plz. A groundwater sample contains 2.000mg/L of iron as Fe3+. What pH is required to precipitate all but 0.500mg/L of the iron at 25C ? Respond with 2 decimal places

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