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Natali5045456 [20]
3 years ago
6

A swimming-pool worker wants the pool's pH to be 7.2. She comes by to test the water and finds that the pH is 8.2. What should s

he do to correct this situation?
Chemistry
2 answers:
lianna [129]3 years ago
5 0

Answer: Add Acid

Explanation:

PtichkaEL [24]3 years ago
3 0
The pH of a solution is a measure of the acidity of a solution and is logarithmically related to the hydrogen ion concentration. It is expressed as:

pH = -log [H+]

We use this to determine the amount of H+ needed to adjust the pH to the desired value.

pH1 = 7.2 = -log [H+]
[H+] = 6.31x10^-8

pH2 = 8.2 = -log [H+]
[H+] = 6.31x10^-9

[H+] to be added =  6.31x10^-8 - 6.31x10^-9 = 5.68x10^-8 M

She should add an acidic solution with concentration 5.68x10^-8 M. Hope this helps.
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