Acid-base titration. Image 1 of 3. Titrations are a method of volumetric analysis, in which a volume of one reagent is added to a known volume of anot

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Acid-base titration. Image 1 of 3. Titrations are a method of volumetric analysis, in which a volume of one reagent is added to a known volume of another reagent until an end point, in this case between pH and This end point can be measured by using an indicator, a substance that changes colour depending on its environment. This reaction is an acid-base titration, and the indicator used is methyl orange. The indicator is red here, showing it is in an acid. For a sequence showing the change in colour at the end point, see images A500/348-350.

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Keywords: acid, acid-base, acidic, alkali, alkaline, base, basic, burette, chemical, chemicals, chemistry, conical, experiment, flask, indicator, methyl, orange, ph, reaction, reagent, reagents, scale, school, solution, solutions, titrant, titration