Lab Report On The Properties Of Acetic Acid

The aspirin was synthesized when it was placed in a cold bath. Purification was necessary to remove any unreacted salicylic acid and acetic anhydride as well as the acetic product and phosphoric acid. Acetic acid and phosphoric acid are water soluble so they were removed by

Acetylsalicylic acid has a molar mass of 180.16 g/mol. It has a melting point range of 134-136°C. Acetylsalicylic acid is toxic and an irritant.

The purpose of this semester long experiment was to determine an unknown organic acid. An organic acid is an organic compound with acidic properties. A base reacts with acids to form salts. Titrations are used to determine the concentration of unknown substances. The purpose of the KHP experiment was to determine the molarity of NaOH. HCl titrations are mainly to check technique and used to verify the molarity of NaOH solution. The hypothesis is that this acid is C4H3OCOOH.

In this experiment, an unknown Grignard reagent was prepared from an aryl halide. The unknown reagent was then reacted with carbon dioxide to form a carboxylic acid. The solid acid was then isolated and recrystallized before the melting point was taken. The precipitate was then dissolved in water and titrated to determine the molecular weight. The melting point and molecular weight were then used to determine the unknown acid obtained from the experiment.

4. NaOH, sodium hydroxide is a strong base. It reacts with HCl and forms NaCl and H2O.

Table 2: Consists of color extract taken from a red cabbage for a natural indicator. The pH reading that was measured by using the pH meter and the result of the pH reading to determine whether the solution was acidic or basic.

Hydrochloric acid is a strong acid whose pH is value is very close to 1. There is a measurement scale for the strength of acids which is called a pH scale, as the pH value gets closer to 1, it means the acid gets stronger. (pHScale, 2017) The chemical formula

Benzoic acid is also commonly known as Phenyl Carboxylic Acid, Dracylic Acid, Benzenecarboxylic Acid, Benzoate, and Retardex to name only a few. It can be identified by it's chemical formula C7H6O2 or by its molecular formula C6-H5-C-O2-H. Benzoic acid has a molecular weight of approximately 122.12 g/mol. At room temperature, it appears to be an opaque solid, generally a white power or crystal. At normal STP benzoic acid is a stable compound so it will not react; however, it can decompose under certain conditions, which can cause toxic carbon oxides, also it reacts with oxidizers to product vigorous exothermic reactions. When benzoic acid is exposed to a heat source or to a flame; there is a small

We discovered that the acetic acid reacted only with baking soda and sample #2. The acetic acid did not react with the sucrose or the table salt. During the conductivity test, the conductivity meter showed that the aqueous form of each substance, sample 2 included, conducted electricity. As the conductivity test produced no conclusive data, we based our determination of sample 2’s nature on the reaction with acetic acid. Sample 2’s reaction was only comparable to that of baking soda, leading us to believe sample 2 is indeed baking

Benzoic Acid – at first it looked to me like a seashell broken up into little tiny bits. When we heated it in the water it gave off this smell that was somewhere in between Kool-Aid and dirty socks. Some of dissolved in the heat, but when we put it into the ice bath it started crystalizing. After going through the filter and drying completely it looked very different but smelled the same. At the end,, it was more of a grayish purple color and crystals had formed but they were softer, and broke when we poked them with the stirring rod.

Based on the boiling point of the ester,119.0 C, the data suggests Isobutyl Acetate was the product and would suggest Isobutyl Alcohol as the unknown alcohol reagent.

The production of aspirin begins salicylic acid which has been derived from the active site of salicin found in willow bark. This is done through multi-step process where substrates of salicin are converted into more basic products such as salicylic acid. Salicylic acid cannot be consumed by itself due to the fact that it is bitter and irritates the stomach causing side effects such as nausea and internal bleeding within the stomach. This is due to the fact that salicylic acid exists in protonated form in the stomach; therefore, the pH of the salicylic acid is low, thus affecting the lining of the stomach. Therefore, to stabilise salicylic acid, it is synthesized into acetylsalicylic acid also known as aspirin. Acetylsalicylic acid is not pronated in the stomach and thus, the pH of acetylsalicylic acid is not as low compared to salicylic acid, thus it does not affect the lining of the stomach as much compared to salicylic acid.

Aqueous solutions of acids have a pH of less than 7." All of these factors help make up the inorganic substances. When writing a chemical formula, you use the Hill system. In this system, you write out carbon atoms first, hydrogen atoms second, and then all other atoms in alphabetical order (if the formula contains no hydrogen or carbon atoms, then you simply sort all the elements alphabetically). A binary compound is a chemical compound that contains two different elements. The opposite would be a polyatomic ion compound which is a chemical compound that consists of more than one atom. the difference between them is binary compounds have two different elements where as polyatomic ion compounds have two or more atoms. One contains compounds (which are already atoms put together) and one contains only atoms. A substances name depends on its compounds and atoms. The chart above names NO2 (NO_2)as nitrogen dioxide. This is its name because it has one nitrogen (nitrogen) and two oxygen (dioxide). Each chemical has a symbol and each compound has a name. This is how we write them

Stoichiometry is a method scientists use to presume how two or more substances will react together. In order to do so successfully, the reactants are positioned on the left and the products on the right. The most important part of successfully

Purpose: The purpose of the experiment was to perform the acid-catalyzed Fischer Esterification of acetic acid and isopentyl alcohol to form isopentyl acetate, or banana oil, which is used in flavor industries. The equilibrium of the reaction was changed by adding an excess amount of acetic acid. The reaction was refluxed and product was purified by extraction and distillation. Isopentyl acetate was analyzed by infrared spectroscopy and 1H NMR spectroscopy.