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10 Cards in this Set
- Front
- Back
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Equivalence Point |
Point when added amount of standard reagent is equal to amount of analyte being titrated. |
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Direct Titration |
Normal titration. Analyte is being titrated with standard reagent and volume required to complete the reaction is measured. |
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Primary standard |
Reagent is pure enough so that mass can directly tell you number of moles. |
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Titrand |
Analyte with unknown concentration. What is being tutrated. |
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Back Titration |
Standard is added in excess to ensure complete reaction with analyte. Excess reagent is then titrated with second standard to tell you how much excess there was and thus, how much analyte there was. |
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Standard solution |
Reagent with known concentration. Often made from reagent known to be pure. |
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Titrant |
Reagent with known concentration. Aliquots added from buret to titrand until end point is observed. Based on volume and known concentration of titrant, you can find number of moles of titrand. |
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Indirect titration |
Analyte does not DIRECTLY react with titrant. Analyte is concerted to another form that will react with titrant. |
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End point |
Point in titration where visible change is observed. Indicated equivalence point has already been reached. |
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Indicator |
Molecule that becomes deprotonated or protonated and changes wavelength of light absorbed accordingly (color). This color change corresponds to the excess acid or base (titrant) present after equivalence point which signals the END POINT. |
