Acid Base Titration Experiment

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Acids and bases are everywhere. From things you drink to things you wash your laundry with, that item is probably an acid or a base. An Arrhenius acid is a molecular substance that when reacted with water will produce hydrogen ions(H+) as the only cations. An Arrhenius base is another molecular substance that when reacted with water will produce hydroxide ions((OH-) as the only anions. Acids and bases have different pH ranges so it isn’t hard to differentiate them. The pH of an acid will always be less than 7. The pH of a base will always be more than 7. Something that has the pH of 7 will be neutral. For example, water is an neutral liquid. An example of an Arrhenius acid would be “HCl”, which is hydrogen chloride. An example …show more content…

We predicted that by using the titration formula the concentration of acetic acid in vinegar can be determined by using 1 M HCl and a solution of NaOH of an unknown concentration because titration finds the concentration of an unknown solution by using the concentration of a known solution (Bronx Science. Experiment 2.12: Acid-Base Titration Lab. 2016). By using the solution of NaOH of unknown concentration with 0.1 M HCl, the concentration of acetic acid in vinegar can be calculated. After the NaOH was standardized, using the titration formula, the concentration of acetic acid in vinegar was found to be .100 M …show more content…

This means that both the concentration of the unknown liquid and the sodium hydroxide would be unknown, which would have led to having no use of the titration formula. At the equivalence point, two solutions, which were acid and base, to be neutralized. Neutralization occurs when there are same amount of moles of hydrogen and hydroxide ions. We used titration to determine the concentration of a basic or acidic solution by using what is given to substitute into the formula. For example, if the concentration of an acidic solution, the number of moles of the acid, the volume of the acid, the number of moles in the base, and the volume of the base was given, the concentration of the basic solution could be computed. Phenolphthalein is a better indicator for titration than methyl orange because it is colorless when reacted with acid but turns pink when reacted with a base. Methyl orange turns red when reacted with an acid but turns yellow when reacted with a base. The phenolphthalein is more effective because it shows a greater color change when reacted with either an acid or an base, compared to the methyl orange. Based on the molar concentration of the acetic acid in vinegar that was experimentally determined, the vinegar is legal because it was a bit more than 4%

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