nanakwameyeb
12.11.2019 •
Chemistry
If you mixed 5.50 ml of the acidic solution with 6.79 ml of the basic solution, what should be the ph of the resulting solution? report your answer with 3 decimal places. note: the pka for acetic acid is 4.757. the activity coefficients for acetic acid and the acetate ion are 1.000 and 0.775, respectively, in a solution with an ionic strength of 0.10 m.
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Ответ:
Answer : The pH of the resulting solution is 4.6
Explanation : Given,
Activity coefficient for acetic acid = 1.000
Activity coefficient for acetate ion = 0.775
Ionic strength = 0.10 M
To calculate the pH of resulting solution we are using Henderson Hesselbach equation :
Now put all the given values in this expression, we get:
Thus, the pH of the resulting solution is 4.6
Ответ: