7. a student chose 1m acetic acid as the buffer solution to inhibit the ph change of an aqueous solution. if a strong acid is added to the solution, would this buffer solution inhibit the change of ph to the aqueous solution? explain.



Answer :

If a strong acid is added, this does not become a buffer and does not dampen sudden changes in pH .

Buffers are used to keep the pH of a solution in a more stable state. This can be done in one of two ways: you can use a weak base to neutralize a strong acid or vice versa.

In order for this to work, the solution must have a pH below 7. For example, a strong acid with a pH of 1 would have a pH of 7 once a weak base was added. This can be tricky when using acids and bases of the same molarity.

The addition of a strong base to a weak acid does not make a buffer. However, the ratio is irrelevant when it comes to whether or not it is a buffer.

So,  If a strong acid is added, this does not become a buffer and does not dampen sudden changes in pH .

To learn more about Buffers, Here :

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