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The pH scale is by far the most commonly used acidity function, and is ideal for dilute aqueous solutions. Other acidity functions have been proposed for different environments, most notably the Hammett acidity function , H 0 , [ 3 ] for superacid media and its modified version H − for superbasic media.
S in seawater, limiting the utility of the otherwise more straightforward free scale. Another scale, known as the seawater scale, often denoted pH SWS, takes account of a further protonation relationship between hydrogen ions and fluoride ions, H + + F − ⇌ HF. Resulting in the following expression for [H +] SWS: [H +] SWS = [H +] F + [HSO ...
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This is the TemplateData for this template used by TemplateWizard, VisualEditor and other tools. See a monthly parameter usage report for Template:PH indicator in articles based on its TemplateData. TemplateData for PH indicator
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In and of themselves, pH indicators are usually weak acids or weak bases. The general reaction scheme of acidic pH indicators in aqueous solutions can be formulated as: HInd (aq) + H 2 O (l) ⇌ H 3 O + (aq) + Ind − (aq) where, "HInd" is the acidic form and "Ind −" is the conjugate base of the indicator. Vice versa for basic pH indicators ...
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