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**To**:**Aquatic-Plants at actwin_com****Subject**:**Re: Calculate CO2****From**:**Chuck H <grendel at usit_net>**- Date: Mon, 01 Jul 2002 07:36:59 -0400
- In-reply-to: <200207010748.g617m2U17109 at acme_actwin.com>

Scott H wrote in response to my posting of a formula for calculating CO2: >I believe Roger Miller has an alternative formula: > > CO2 = 12.839 *KH * 10^(6.37-pH) > >The resulting values are nearly the same as the "3 * KH * 10^(7-pH). > >Roger, if you're listening, care to comment (or correct?) Perhaps I can save Roger a few keystrokes, Scott. :) The following URL leads to a post by George Booth which details the reasoning behind the equation he and Roger developed which Scott mentions above. http://fins.actwin.com/aquatic-plants/month.9707/msg00211.html This next URL jumps to a post in which Carlos Munoz shows the mathematical link between Roger and George's equation and the one I posted for Greger. http://fins.actwin.com/aquatic-plants/month.9707/msg00212.html Enjoy! -- Chuck Huffine Knoxville, Tennessee

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