Lab Report On Titration Lab

1334 Words Apr 14th, 2015 6 Pages
Mariam Sy May 8, 2014
Acid- Base Titration Lab Write-up
Titration is the process of adding measured volumes of a base or acid with a known concentration to an acid or base with an unknown concentration in order to determine the unknown concentration. Volume measurements play an important role in titration. It involves measuring the exact volume of a solution with a known concentration that will react with a measured volume of a solution that has an unknown concentration. The solution that has a known concentration is called a standard solution. Acid- base titration is based on neutralization that occurs in the reaction. If a base is added to an acid until the acid is neutralized, then the moles of base and the moles of acid will be equal. In other words, the moles of H+ ions must equal the number of moles of OH- ions. The following equation can be used to calculate the unknown molarity of an acidic or basic solution: (Molarity of the acid) * (Volume of the acid) = (Molarity of the Base) * (Volume of the Base) or MaVa = MbVb. Equivalence point is when there is enough of the standard solution to neutralize the unknown solution.
The endpoint is when the indicator changes color. The difference between the equivalence point and the endpoint is that the equivalence point is when the pH of the solution is 7 which means that it is neutral. However, the endpoint is when the indicator turns either white which shows that the solution is acidic or pink which…
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