(a) Following the example of ammonia in Section 7-5, write the equilibria and charge and
Chapter 7, Problem 7-26(choose chapter or problem)
(a) Following the example of ammonia in Section 7-5, write the equilibria and charge and mass balances needed to find the composition of 0.01 M sodium acetate, which you should abbreviate as NaA. Include activity coefficients where appropriate. (b) Neglect activity coefficients for this part and call the formal concentration F. Following the example of ammonia, reduce the equations to a single equation with [H] as the sole unknown. Do not try to simplify the equation. (c) Use Excel Goal Seek to solve for [H]. Use the value Kb 5.7 1010. Before using Goal Seek in Excel 2007, click the Microsoft Office button, then Excel Options, and select Formulas. In Calculation Options, set Maximum Change to 1e-14. In earlier versions of Excel, go to Tools and Options. Select the Calculations tab and set Maximum change to 1e-14. From [H], find [OH], [A], and [HA]. 7-27. (
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