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Yes it does. pH is defined as the -log of the concentration of hydrogen ions in a solution, or -log[H+]. As you add water to an acid, you are diluting it, thus lowering the concentration of H+. Putting a lower value in for [H+] in the equation -log[H+] will give you a great value than you originally had. This means the pH has increased, making the solution more basic.

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βˆ™ 16y ago
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βˆ™ 5mo ago

Adding water to an acid can dilute the solution, potentially lowering the concentration of hydrogen ions (H+) and thus increasing the pH. However, the pH change may not be significant depending on the initial concentration of the acid and the amount of water added.

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βˆ™ 15y ago

water is amphoteric in nature with acid it behaves like base and with base it behaves like acid.

when water is added to the acid it behaves like a base and neutralises it to some extent and thus the pH of acid decreases on adding water.


Answer 2:

When you add water to the acid, you are diluting it and making it weaker therefore the pH will decrease (the value will get closer to 7 on a pH scale).

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βˆ™ 7y ago

The whole point of a buffer is that when a little bit of acid or base is added, the pH does not change significantly.

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βˆ™ 7y ago

The change of the buffer pH is not significant.

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βˆ™ 16y ago

it will melt the glass

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Q: Does adding water change the pH of an acid?
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