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How much limestone in kilograms is required to completely neutralize a 3.8 x 109 L lake with a pH of 5.5?

  • Chemistry -

    pH 5.5 is what acidity in mol/L?
    pH = -log(H^+)
    How many mols H^+ in the lake? That's ?mol/L x 3.8E9L = ?mols H^+.

    2H^+ + CaCO3 ==> Ca^2+ + CO2 + H2O
    ? mols H^+ x 1/2 = mols CaCO3.
    Convert mols CaCO3 to kg.

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