Acetic acid

Titrations of a strong acid or base with a weak acid or base yield results that greatly differ then a strong-strong titration. The strong-weak titrations allow for an in depth analysis of the half-equivalence point as well as buffers. The half equivalence point allows the calculation of pH from pKa, as they are both equal at the half equivalence point, proven by the Henderson Hasslbach equation. It was Henderson in 1908 that created an equation allowing for the logarithmic calculation for pH…

aspirin from salicylic acid and acetic anhydride. The general theory behind this experiment was to study the synthesis of a drug from organic materials. During the experiment, esterification had occurred between reactants salicylic acid and acetic anhydride. Then, phosphoric acid would catalyze the reaction and water would be added to decompose the remaining acetic anhydride. Through the process of filtration, aspirin crystals were collected and separate from the liquid acetic acid-water…

Purpose: As derivatives of carboxylic acids, esters are abundant compounds that often contribute to the fragrances in flowers, fruits, and coffee. Esters are synthesized from either organic or inorganic acids through a process called esterification. In this reaction, a carboxylic acid (RCOOH) and an alcohol (R’OH) mix in the presence of a strong acid catalyst to form a neutral, water-insoluble ester (RCOO’R) that gives off a pleasant smell. The following is an example of this reaction: The…

Organic Acids An organic acid is an organic compound with acidic properties. The most common organic acids are the carboxylic acids, whose acidity is associated with their carboxyl group –COOH. Sulfonic acids, containing the group –SO2OH, are relatively stronger acids. Alcohols, with –OH, can act as acids but they are usually very weak. In general, organic acids are weak acids and do not dissociate completely in water, whereas the strong mineral acids do. Lower molecular mass organic acids such…

experiment was to determine the percent by mass of acetic acid within a sample of vinegar using volumetric analysis with the titration technique. The theory is that if the volume and molar concentration of the standardized sodium hydroxide (NaOH) solution is known, then the percent by mass of the acetic acid (CH3COOH) in vinegar can be calculated after a titration.1 Within this experiment, a NaOH solution was standardized with a primary standard acid of potassium hydrogen phthalate (KHC8H4O4) in…

To begin the reaction,1ml of acetic acid was added to 0.1g p-dimethoxybenzene and 0.20ml of t-butyl alcohol in a test tube. The solution was mixed and placed in an ice bath. Approximately 34 drops of sulfuric acid from a plastic pipette dropper was slowly added to the solution. The solution remained under the ice bath during this addition to control heat production. The…

The two main purposes of the lab were to determine the percent by mass of acetic acid in vinegar and to determine the molar concentration of a strong acid. In both parts of the experiment a volumetric analysis was used. This is primarily the aid of volumetric glassware in order to determine specific measurements and calculations. Potassium hydrogen phthalate was used as the primary acid standard to determine the molar concentration of the sodium hydroxide solution in part one of the experiment.…

Vinegar Dilute and Impure Acetic Acid or better known as vinegar is a compound formed by the chemical reaction of carbon, hydrogen and oxygen. The composition of vinegar is acetic acid (C2H4O2) and water. Also, the formula for this compound is CH3COOH. These elements are nonmetals,so the type of bond that this substance made is covalent. Vinegar has many kind of properties and utilization in several ways. For example, it can be use for food preparation, cleaning and health. When added in…

order to convert a carboxylic acid into an ester. As a result of this reaction, the alcohol (-OH) of the original carboxylic acid, Benzoic Acid, will be replaced with the –OCH3 group attached to the original alcohol, methanol. This would then generate the ester, Methyl Benzoate. An ester is a derivative of a carboxylic acid that can be formed in multiple ways. The most straightforward approach to producing and ester involves the interaction between a carboxylic acid and an alcohol, where the…

of Potassium Ferrocyanide and 125.0 milliliters of distilled water. The 2% Hydrochloric acid solution was created using 2.5 milliliters of Hydrochloric Acid and 122.5 milliliters of distilled water. The Potassium Ferrocyanide-Hydrochloric Acid Solution was prepared by mixing 125.0 milliliters of 2% Potassium Ferrocyanide and 125.0 milliliters of 2% Hydrochloric Acid. The Mix equal parts of 2% hydrochloric acid and 2% potassium ferrocyanide solution JUST before…