utilized in chemical castration are cyproterone acetate‚ medroxyprogesterone‚
Premium Drug addiction Morphine Testosterone
CHEM 3152-003 Experiment 2: Fractional Distillation and Gas Chromatography Introduction: The purpose of this experiment was to separate a mixture of ethyl acetate (EtOAc) and toluene by using the method of fractional distillation and to analyze the fractions using gas chromatography (GC). ethyl acetate toluene Distillation is a method known as separating or purifying a liquid or mixture by vaporization and condensation. In a simple distillation‚ the liquids being separated boil below 150 0C
Premium Distillation Chromatography Gas chromatography
how much they resist changes to pH. This is accomplished by having ten graduated beakers: two containing pure water‚ two with .1 M Sodium Chloride‚ two with 1 gram of solid sodium acetate dissolved in acetic acid‚ two with 5 grams of solid sodium acetate dissolved in acetic acid‚ and two with 10 grams of solid sodium acetate dissolved in acetic acid. These are split into two groups of five containing one of each solution. The pH of each solution is then measured and a pipette is used to distribute 1
Premium Acid dissociation constant Sodium hydroxide PH
Experiment 19: Fischer Esterification‚ Conclusion The objective in this experiment was to efficiently perform an Fischer esterification of 1-butanol and acetic acid to form water and n-butyl acetate‚ and to confirm the esterification using IR spectroscopy analysis. It was found that 0.734 grams of n-butyl acetate was formed with a percent yield of 61%. The product was confirmed using IR spectroscopy and boiling point confirmation. The reaction mechanism for this specific reaction was as follows: First
Premium Acetic acid Alcohol Ester
Figure 3 Superoxide radical scavenging activity. Values are mean ± SEM (n = 3). ABL‚ lyophilized aqueous extract of A. bilimbi fruits; ABP‚ petroleum ether fraction of ABL; ABE‚ ethyl acetate fraction of ABL; ABB‚ butanol fraction of ABL; ABW‚ aqueous fraction of ABL; QU‚ quercetin. 3.3.5 Nitric oxide radical scavenging activity Lyophilized aqueous extract of Averrhoa bilimbi fruits (ABL) and its different solvent fractions exhibited a dose dependent inhibition of nitric oxide radicals. The IC50
Premium Chemistry Solvent Oxygen
Introduction The production of acetone and butanol by means of solvent-producing strains of Clostridium spp. was one of the first large-scale industrial fermentation processes to be developed‚and during the first part of this century it ranked second in importance only to ethanol fermentation. The reason for the almost total demise of this fermentation in the early 1960s was the inability of the fermentation process to compete economically with the chemical synthesis of solvents. However‚ interest
Premium Maize Acetone Starch
from the acid; the principal source of the acetate ion is from the salt. Therefore‚ the [H3O+] is determined by the salt/acid (or equivalently‚ the base/acid) mole ratio. For a conjugate acid/base pair: pH = pKa + log10 [nconjugate base] [nacid] On the other hand‚ the salt‚ sodium acetate (NaC2H3O2)‚ is essentially 100% dissociated into the constituent hydrated ions in a dilute aqueous solution. Sodium acetate solutions are basic because the acetate ion (the conjugate base of acetic acid) behaves
Premium Acetic acid PH Buffer solution
Results and Discussions Cbes-AXE2 encodes a novel acetyl xylan esterase The CAZy database has grouped esterases acting on carbohydrates into 16 different families of carbohydrate esterases (CEs). AXEs (EC 3.1.1.72) acting on acetylated xylan are distributed in only 8 families – CE1-7 and 16. Among these‚ other than CE4‚ all other CEs belong to serine esterase and have the prototype catalytic triad Ser-His-Asp (Glu). Genralyy‚ the catalytic serine of the triad lies in a conserved motif of either
Premium DNA Protein Gene
has the ability to resist changes in pH upon the addition of small amounts of either acid or base. Consider an equal molar mixture of CH3COOH and CH3COONa CH3COOH (aq) H+ (aq) + CH3COO- (aq) Adding more acid creates a shift left IF enough acetate ions are present 16.3 Which of the following are buffer systems? (a) KF/HF (b) KCl/HCl‚ c) Na2CO3/NaHCO3 (a) KF is a weak acid and F- is its conjugate base buffer solution (b) HCl is a strong acid not a buffer solution (c) CO32-
Premium Acid dissociation constant Buffer solution PH
Using orange (Citrus sinensis) as an airfreshener Review of related literature: Octyl acetate Octyl acetate‚ or octyl ethanoate‚ is an ester that is formed from octanol (octyl alcohol) and acetic acid. It is mostly found in oranges and other citrus products. Octyl acetate can be synthesized by a condensation reaction: C8H17OH + CH3COOH → C10H20O2 + H2O Uses Because of its fruity odor‚ octyl acetate is used as the basis for artificial flavors and in perfumery. It is also as a solvent for
Premium Acetic acid Ester