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explain how acid-base reaction helps determine pH via titration |
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[[File:08. Директна синтеза на амониум хлорид.webm|thumb|upright=1.5|thumbtime=10|Video of reaction between gaseous [[hydrochloric acid]] and [[ammonia]] (base), forming white [[ammonium chloride]]]]
{{Acids and bases}}
An '''acid–base reaction''' is a [[chemical reaction]] that occurs between an [[acid]] and a [[base (chemistry)|base]]. It can be used to determine [[pH]] via [[Acid–base titration|titration]]. Several [[theory|theoretical]] frameworks provide alternative conceptions of the reaction mechanisms and their application in solving related problems; these are called the acid–base theories, for example, [[Brønsted–Lowry acid–base theory]].
Their importance becomes apparent in analyzing acid–base reactions for gaseous or liquid species, or when acid or base character may be somewhat less apparent. The first of these concepts was provided by the French [[chemist]] [[Antoine Lavoisier]], around 1776.<ref name="lavoisier_1">{{harvnb|Miessler|Tarr|1991|p=166}} – Table of discoveries attributes Antoine Lavoisier as the first to posit a scientific theory in relation to [[oxyacid]]s.</ref>
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