If you dilute a 1 M HCL solution to 0.001 M, does the PH increase or decrease

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If you dilute a 1 M HCL solution to 0.001 M, does the PH increase or decrease

[From: ] [author: ] [Date: 12-05-10] [Hit: ]

001M] = 3-The pH increases.-log[0.......

I need some help on my chemistry review packet for my test that is coming up. i need all the help i can get.

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The pH increases. You can check by using the equation

pH = -log[H]

Where [H] is the hydrogen ion concentration.

Since HCl is monoprotic, it can only give up one hydrogen ion, therefore we can use the given concentrations.

pH = -log[1M] = 0

pH = -log[0.001M] = 3

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The pH increases. You can check this by using this equation

pH = -log[H]

-log[1M] = 0

-log[0.001M] = 3

1

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