18.14 Assuming that the effect of dissolved salts on ion activity is negligible and that the temperature of the water sample is 25°C, do the following: (a) Estimate the bicarbonate-ion concentration (in mg/L as HCO3-) if the pH of the sample is 10.3 and the carbonate concentration is 120 mg/L (in mg/L as CO3^2-) (b) Estimate the hydroxide, carbonate, bicarbonate, and total alkalinities for the solution in part (a).

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