could you help me to explain why doesn't the pH change when we dilute it with water? thanks

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  1. When something is diluted you change both the concentrations of acid and base but the ratio is still the same

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  2. When you dilute something you are just spreading it out more

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  3. An acid diluted DOES change the pH.
    A base diluted DOES change the pH.
    For example, 0.1 M HCl has a pH of 1.
    Dilute that by a factor of 2 and the concn = 0.05. The pH of that solution is -log(0.05) = 1.30

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