Lab Report Of Titration Lab

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Introduction: The goal of this lab was to find point where acetic acid and sulfuric acid solutions are neutralized using NaOH as a strong base, this process is known as titrating to find the endpoint. Titration is a technique designed to discover the molarity of an acid solution using a solution with a known molarity, in this experiment, NaOH was used. Titration required a color indicator to make the titration visible. In this lab, phenolphthalein was added to the solution so that the solution would turn light pink when the NaOH reached its endpoint. To find the molarity of NaOH, a solution of NaOH was created and titrated because it is not possible to determine the solid weight of NaOH because it absorbs H2O from the air in solid form. The molarity of NaOH was found by averaging the results of three separate titrations of NaOH solutions. Once the molarity of NaOH was …show more content…
The average of the three molarity values was calculated using equation 3:
Average molarity= (M_1+M_2….+M_n)/n and was used for the following two sections of the lab.
The purpose of the second section of the lab was to titrate acetic acid solution to measure the molarity. 2.0 mL of acetic acid was measured using the 10 mL graduated cylinder and the value was recorded. The sample was added to an empty Erlenmeyer flask and diluted using distilled water to 50 mL. The graduated cylinder was washed out using distilled water and added to the flask. Three drops of phenolphthalein were added and the solution was titrated until it turned a light pink color. The final volume was recorded when the endpoint was reached. Equation 1 was used to find the volume of NaOH used and equation 2 was used find the molarity of acetic acid. The test was repeated and the average of the two molarities was found using equation

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