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connerwoodle8941
09.01.2020 •
Chemistry
The ph of a solution containing 0.818 m acetic acid
(ka1.76*10-5) ans 0.172 m sodium acetate is?
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Ответ:
Explanation:
It is known that the relation between pH and
is as follows.
pH =![pK_{a} + log \frac{[salt]}{[acid]}](/tpl/images/0448/1062/53bf6.png)
and,![pK_{a} = -log K_{a}](/tpl/images/0448/1062/cb384.png)
Hence, first we will calculate the value of
as follows.
=![-log (1.76 \times 10^{-5}](/tpl/images/0448/1062/5f547.png)
= 4.75
Now, we will calculate the value of pH as follows.
pH =![pK_{a} + log \frac{[\text{sodium acetate}]}{\text{acetic acid}}](/tpl/images/0448/1062/63c53.png)
=
= 4.75 + (-0.677)
= 4.07
Therefore, we can conclude that the pH of given solution is 4.07.
Ответ:
Electricity. GIMME BRAINLIEST (pleasee) >:)
Explanation: