Benzoic acid

to perform liquid-liquid extraction in order to isolate benzocaine and benzoic acid from a mixture. The initial mass of the impure mixture of benzoic acid and benzocaine was 2.143 g. At the end of the experiment, 0.244 g of benzocaine was obtained, and 0.411 g of the benzoic acid was obtained. The melting point range for the benzocaine was 88.6 degrees Celsius to 90.4 degrees Celsius. The melting point range for the benzoic acid was 122.3 degrees Celsius to 125.6 degrees Celsius. The percent recovery

Naphthalene and benzoic acid are two compounds studied in this experiment. Sodium benzoate is also an important substance involved in the separation process. The separation technique used to extract the different compounds of a heterogeneous mixture is based on solubility and density. Regarding naphthalene and benzoic acid, their chemical properties differ from one another (Separation 1). The detailed separation process of naphthalene and benzoic acid, found in a mixture, follows. First of, when

Obu Unknown #: 146 Fall-11 Organic Chemistry Midterm Report 13 October 2011 Table of Contents Separation of Benzoic Acid and Acetanilide 3 Extraction and Purification of Caffeine from Tea 4 Extraction of Trimyristin from Nutmeg 5 Conversion of t-butanol to t-butyl chloride 6 Appendix 7 Calculations 8 Literature and Experimental Values of Benzoic Acid and Acetanilide 9 Experimental Caffeine IR 10 Literature Caffeine IR 11 Experimental Trimyristin IR

(9) Benzaldehyde is an Amino Acid and nucleotide. These are typically used as a Sodium or Calcium Salt. (10) Purpose: Benzaldehyde Flavoring is used when its difficulty taking a medication due to taste, unable to swallow a capsule or battling a chronic illness; often, sweet flavors can become unbearable, or bitter flavors’ may cause nausea. In these instances,

America is not what it used to be. America has changed from what it was yesterday, and will evolve into the infinite unknown. Every day we continue to lose touch with our self-respect and what we value. We have lost our morality for animals. The public majority seems to no longer care how our meat is produced and made. Big companies have been able to keep it a secret from the people of how bad our meat has gotten over the past few years. These big companies are making billions of dollars a year,

solubility and melting point of the substances are accounted for certain substances to be dissolved in certain solvents. The melting point is a certain temperature at which a given substance, in this case a solid, is melted. The melting point of benzoic acid and naphthalene in this experiment are needed to understand at which temperature the substances are purified. The melting points were denoted in ranges that explained at which points the substance began to melt, and were completely melted. In relation

Unit 1 Activity 1: Benzoic Acid MSDS Report: 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

point of 188°C, while the theoretical range for benzocaine is between 121°C-123°C. The sodium sulfate impurities present, resisted melting in the compound. After the experiment was concluded, the IR and 1H-NMR spectra were obtained for 4-aminobenzoic acid and benzocaine. When the spectra were compared, it became clear that a reaction had occurred, since certain signals

Methods Effect of pH on Enzyme Activity and Benzoquinone Absorption During this experiment, the activity of catechol oxidase and the absorbance of benzoquinone was measured in five solutions with different pH concentration. Five cuvettes provided by the instructor were used during the experiment. The transmittance on the spectrophotometer was zeroed on an empty chamber and it was set at a wavelength of 486 nm. Because the shape of an enzyme changes with different pH concentration and each pH has

Benzalknoium salts are considered as cationic surfactants and have more than one atomic name. Surfactants are compounds that subordinate the surface tension amid two liquids or amid a liquid and a solid. Applications of surfactants are that they have the availability to act as detergents, dispersants, wetting agents, foaming agents, and emulsifiers. Benzalknoium salts which contain surfactants are used in disinfectants, antiseptics, and preservatives which are imperative for medicines that ameliorate