Re: Physical Interpretation of Negative pH.

On Mon, 29 Aug 2005 17:09:43 +0200, Farooq W <farooq.w@xxxxxxxxx> wrote:

(iii) A short note in J.Chem.Ed has a procedure for making a pH
-47 to +47 HCl solution which I think is meant to be a joke.

Suppose we have 1 liter of  1x10^-6 M HCl, add about 99 L of water, the
[HCl] is 1x10^-8 M and pH= 8. Now suppose you have single molecule of
HCl in 10^23 L of water, so that
[HCl] = 1.7x10^-47, the pH is then 47!


I agree with Marvin - that's not even funny.

http://www.chembuddycom/?left=pH-calculation&right=pH-strong-acid-base

Best,
Borek
--
http://www.chembuddy.com - chemical calculators for labs and education
BATE - program for pH calculations
CASC - Concentration and Solution Calculator
pH lectures - guide to hand pH calculation with examples
.

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