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Relation between pH and pOH. Red represents the acidic region. Blue represents the basic region. pOH is sometimes used as a measure of the concentration of hydroxide ions, OH −. By definition, pOH is the negative logarithm (to the base 10) of the hydroxide ion concentration (mol/L). pOH values can be derived from pH measurements and vice-versa.
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 ...
With pOH obtained from the pOH formula given above, the pH of the base can then be calculated from =, where pK w = 14.00. A weak base persists in chemical equilibrium in much the same way as a weak acid does, with a base dissociation constant (K b) indicating the strength of the base. For example, when ammonia is put in water, the following ...
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The self-ionization of water (also autoionization of water, autoprotolysis of water, autodissociation of water, or simply dissociation of water) is an ionization reaction in pure water or in an aqueous solution, in which a water molecule, H 2 O, deprotonates (loses the nucleus of one of its hydrogen atoms) to become a hydroxide ion, OH −.
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Parents and students at an Oregon high school are in a furious uproar after two alleged pedophile teachers were arrested last week on charges they sexually abused on at least nine underage girls ...
No description. Template parameters [Edit template data] This template prefers block formatting of parameters. Parameter Description Type Status indicator_name indicator_name no description Unknown optional low_pH low_pH no description Unknown optional high_pH high_pH no description Unknown optional low_pH_color low_pH_color no description Unknown optional low_pH_text low_pH_text no ...