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Titration Theory - Titration is a laboratory technique by which we can use to determine the concentration of an unknown solution using a standard concentration of another solution that chemically reacts with the unknown.

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  • Essay length: 598 words
  • Submitted: 08/09/2003
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GCSE Aqueous Chemistry

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Titration

Theory

Titration is a laboratory technique by which we can use to determine the concentration of an unknown solution using a standard concentration of another solution that chemically reacts with the unknown. This standard solution is referred to as the "titrant". We have to have some way to determine when the reaction is complete so you add indicator to the unknown so you can see when the reaction is complete. This is referred to as the "end point" or more technically the equivalence point. At that point all the unknown has been reacted with the standard titrant and some kind of chemical indicator must let us know when that point has been arrived at.

To find the morality of the unknown you use this formula;

Which can be rearranged to find the concentration of the unknown;

Generally we know the morality of the titrant since it is a standard solution. We also pre-measure the volume of the unknown. We then titrate with the standard from a burette into the container with the measured unknown and the chemical indicator until the indicator either turns colour or a precipitate indicates that the end

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