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9. (30%) (a) You added 105 mole NaHCO3 in 1L of water. Write the 2 acid dissociation reactions and 5 equations: the mass balance; acid

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9. (30%) (a) You added 105 mole NaHCO3 in 1L of water. Write the 2 acid dissociation reactions and 5 equations: the mass balance; acid dissociation; water dissociation; and charge balance equations. (b) Draw the logC - pH diagram and find the resulting pH value or pH range using the diagram. (Just draw the diagram. You do not have to show the steps for each part of the lines. Use the grid paper on Avenue.) What is the concentration (range) of the individual carbonate species? (c) Repeat Parts (a) and (b) if you added 105 mole H2CO3 (carbonic acid) in 1L of water. Draw a new log C-pH diagram on a separate grid paper. (d) Repeat Part (c) for 102MH2CO3. Draw the log C-pH diagram on a separate grid paper. What happened to pH for the higher H2CO3 concentration? (e) Write down the alkalinity equation for water containing carbonate species. (f) Using the equation in Part (e), determine the alkalinity of the solutions in Parts (a) and (c). Write your answers both in eq/ L and mg/L as CaCO3

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