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Unformatted text preview: order to detect when the correct amount of base is added we will use and indicator, which will change the color of the solution once it approaches the point where the reaction is done, which is known as the endpoint of the reaction. As a group we will be performing a titration, which is determining the concentration of an unknown acid or base. In our lab we are starting with the unknown acid, which will be vinegar and attempt to determine its concentration. This can either be done with an indicator or and pH pen, in our lab we will be using both. When performing the lab you must know around what the equivalence point is. The equivalence point is the pH at which the acid is neutralized. You can also use back titration to determine the concentration of reactants and this is done by, adding excess volume of another reactant that has a known concentration. Back titration is typically used when the reactants from the reaction are too weak to give a valid reaction....
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This note was uploaded on 02/22/2012 for the course ENG-SCI 255 taught by Professor Wood during the Spring '08 term at Harvard.
- Spring '08