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Topic: calculating mM from PH  (Read 3402 times)

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Offline meedman

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calculating mM from PH
« on: October 04, 2007, 01:35:23 PM »
Been stuck on this type of question for awhile

how does this get calculated?

[H+] (hydrogen ion concentration) in mM (mmol.l-1) of a solution with a pH of 3.8?

I originally had in my head you take the PH then 10-ph then -log the answer but i feel i'm way off.
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Offline Borek

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Re: calculating mM from PH
« Reply #1 on: October 04, 2007, 02:31:44 PM »
Quote from: meedman on October 04, 2007, 01:35:23 PM
10-ph

gives molarity by definition. Convert to mM afterwards.
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