{"term":{"id":"01386","doi":"10.1351\/goldbook.C01386","code":"C01386","status":"current","longtitle":"IUPAC Gold Book - Cox–Yates equation","title":"Cox–Yates equation","version":"2.3.3","lastupdated":"2014-02-24","definitions":[{"id":"1","text":"A modification of the Bunnett–Olsen equation of the form: log10([SH+]\/[S]) - log10[H+] = m*.X + pKSH+ is called the excess acidity because it gives a measure of the difference between the acidity of a solution and that of an ideal solution of the same concentration. In practice and .","links":[{"title":"Bunnett–Olsen equation","type":"internal","url":"https:\/\/goldbook.iupac.org\/terms\/view\/B00758"},{"title":"excess acidity","type":"goldify","url":"https:\/\/goldbook.iupac.org\/terms\/view\/E02234"},{"title":"acidity (of a compound, of a medium)","type":"goldify","url":"https:\/\/goldbook.iupac.org\/terms\/view\/A00079"}],"math":[{"alttext":"log10([SH+]\/[S]) - log10[H+] = m*.X + pKSH+","latex":"\\log _{10}(\\frac{[\\text{SH}^{+}]}{[\\text{S}]})- \\log _{10}[\\text{H}^{+}] = m^{*}\\ X + \\text{pK}_{\\text{SH}^{+}}"},{"alttext":"log10(γS.γH+\/γSH+)","latex":"\\log _{10}(\\frac{\\gamma _{\\text{S}}\\ \\gamma _{\\text{H}^{+}}}{\\gamma _{\\text{SH}^{+}}})"},{"alttext":"X","latex":"X"},{"alttext":"X = -(H0 + log10[H+])","latex":"X=- (\\mathrm{H}_{0}+\\log _{10}[\\mathrm{H}^{+}])"},{"alttext":"m* = 1 - Φ","latex":"m^{*}=1- \\mathit{\\Phi }"}],"sources":["PAC, 1994, 66, 1077. 'Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)' on page 1101 (https:\/\/doi.org\/10.1351\/pac199466051077)"]}],"links":{"html":"https:\/\/goldbook.iupac.org\/terms\/view\/C01386\/html","json":"https:\/\/goldbook.iupac.org\/terms\/view\/C01386\/json","xml":"https:\/\/goldbook.iupac.org\/terms\/view\/C01386\/xml","plain":"https:\/\/goldbook.iupac.org\/terms\/view\/C01386\/plain","pdf":"https:\/\/goldbook.iupac.org\/terms\/view\/C01386\/pdf"},"citeas":"IUPAC. Compendium of Chemical Terminology, 2nd ed. (the \"Gold Book\"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). Online version (2019-) created by S. J. Chalk. ISBN 0-9678550-9-8. https:\/\/doi.org\/10.1351\/goldbook.","license":"Licensed under Creative Commons Attribution-NoDerivatives (CC BY-NC-ND) 4.0 International (https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/)","collection_reuse":"For parties interested in reusing the entire IUPAC Gold Book please contact IUPAC here https:\/\/www.cognitoforms.com\/IUPAC1\/ContactInformationForm","disclaimer":"The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using.","accessed":"2023-05-31T15:12:18+00:00"}}