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    Calcium Carbonate and the pH of Lake Water

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    The pH in a lake the size of 4.0 km X 7.0 km and an average depth of 100 m is found to be 4.5. Calculate the mass of calcium carbonate that must be added to the lake water in order to raise its pH to 6.0, assuming the reaction of H+ with CaCO3 gives CO2 here (answer in grams).

    Hint: Calculate volume of lake, change of H+ concentration, mol of calcium carbonate required.

    © BrainMass Inc. brainmass.com October 9, 2019, 11:20 pm ad1c9bdddf
    https://brainmass.com/chemistry/environmental-chemistry/mass-calcium-carbonate-ph-lake-water-253241

    Solution Summary

    This solution explains how to calculate the mass of calcium carbonate needed to raise the pH of lake water to 6.0 in an attached Word document.

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