MadSci Network: Chemistry

Subject: Can a pH meter measure the pH of de-ionized water?

Date: Mon Sep 25 00:42:21 2000
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Area of science: Chemistry
ID: 969856941.Ch

A friend had mentioned to me that the pH of de-ionized water could not be 
measured since pH meters need ions to measure pH.  But, I think the de-
ionized water we have just means that the salts have been removed from the 
water.  If that is all that is removed, then the pH meter should function 
properly due to all the hydrogen ions in the water, right (pH=-log [H+])?

Re: Can a pH meter measure the pH of de-ionized water?

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