At the equivalence point, all the KIP present has been neutralized by the added Noah and the solution is still colorless. However, if we add just one more drop of Noah solution from the burette, the solution will immediately turn pink because the solution is now basic. Titration of an unknown l. A measured amount of an acid of unknown concentration is added to a flask using a burette. An appropriate indicator such as phenolphthalein is added to the solution. (The indicator will indicate, by a color change, when the acid and base has been neutralized). 2. Base (standard solution) is slowly added to the acid, .
Essay Example on Volumetric Titration Lab Report
The process is continued until the indicator shows that naturalization has occurred. This is called the END POINT. The end point is usually signaled by a sharp change in the color Of the indicator in the acid solution. In acid-base iterations, indicators are substances that have distinct different colors in acid and base (Phenolphthalein pink in base, colorless in acid). 4. At the equivalence point, both acid and base have been completely neutralized and the solution is still colorless. However, if we add just one more drop of Noah solution from the burette, the solution will immediately turn pink cause the solution is now basic.