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12 Dec 2019

An acetic acid/ sodium acetate buffer solution was prepared using the following components:

3.46 g of NaC2H3O2∙3H2O (FW. 136 g/mol)

9.0 mL of 3.0 M HC2H3O2

55.0 mL of water

-What is the total volume of the solution?

-Calculate the concentration of the [C2H3O2-] in this solution.

-Calculate the concentration of the [HC2H3O2] in this solution.

-Calculate the pH of this buffer solution. The Ka for acetic acid is 1.8x10-5.

-If you take half of this solution and add 2 mL of 1.00 M HCl to it, then what is the pH of this new solution?

-If you take half of this solution and add 2 mL of 1.00 M NaOH to it, then what is the pH of this new solution?

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Hubert Koch
Hubert KochLv2
13 Dec 2019

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