Proponent: Kyle Brent P. Girao Section: II-SC-A Teacher: Mrs. Catalina Silang Station agency: Jose J. Leido Jr. Memorial National High School Cooperative Agency: School Library and Internet Cafe Project Cost: P 10 The Effectivity of Suob-kabayo (Hyptis suaveolens) leaves As a treatment For Athlete’s foot Abstract Athlete’s foot
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Toluene is a clear colorless liquid that has an aromatic odor. It ignites in air at 40 degrees Fahrenheit. It is also less dense than water and because so will float atop it. Toluene is non-corrosive. Toluene is in a ton of things! Toluene is used in aviation gasoline‚ high-octane blending stock‚ and petroleum/coal production. It is used as a solvent in things we use everyday like paints‚ coatings‚ and gums. Toluene occurs naturally in crude oil and in the tolu tree. The tolu tree is where Toluene
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Limiting reagent‚ Theoretical yield‚ Percent yield‚ melting point of product. State integration‚ chemical shifts of all peaks or reagions of peaks and Splitting (singlet‚ triplet‚ quartet). If there are many peaks jumbled in one area such as in the aromatic region‚ state the beginning and ending chemical shift‚ the integration‚ and call the peak a “multiplet” Use the areas of the methylene peaks at 4.7 and 3.9 ppm to determine the percent composition of each product for both of the NMR spectra shown
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Chemical bond From Wikipedia‚ the free encyclopedia A chemical bond is an attraction between atoms that allows the formation of chemical substances that contain two or more atoms. The bond is caused by the electrostatic force of attraction between opposite charges‚ either between electrons and nuclei‚ or as the result of a dipole attraction. The strength of chemical bonds varies considerably; there are "strong bonds" such ascovalent or ionic bonds and "weak bonds" such as dipole–dipole interactions
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carbanion source‚ where X and Y are the electron withdrawing groups such as –CN‚-COOR‚-COR‚ NO2‚ etc. These groups are capable of stabilizing an adjacent carbanion by resonance. So in this experiment‚ the Knoevenagel Condensation of diethyl malonate with aromatic aldehyde salicylaldehyde involves an initial aldol-type addition followed by a spontaneous dehydration. The final step forms a lactone ring‚ generating the heterocyclic ring system known as Coumarin. One of the best known synthetic coumarins is
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extremely reactive. As an electrophile‚ it is activated by something called the phenacyl effect (Reeve J. Am. Chem. Soc. 1954‚ 76‚ 2280-2281). The phenacyl effect applies to halides that are adjacent to a _-bond‚ such as a simple double bond‚ an aromatic ring‚ or a carbonyl. The neighboring _-bond stabilizes both SN2 substition and SN1 ionization (Figure
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Discussion The reaction through which 4-mrthaoxyacetophenone is converted to 4-methoxybenzoic acid is a haloform reaction. This reaction involves two distinct stages that occur in the same environment. The first stage occurs through the based-catalyzed halogenation of the ketone that forms a trihalo ketone. First‚ the bleach is transformed into chlorine and hydroxide ions through the following reaction: Then‚ the hydroxyl is able to attack the rather acidic (pKa ~ 20) α-hydrogen of the ketone
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This new wonder pain killer was found in Meadowsweet (Spiraea ulmaria)‚ a wild flowering plant that grows on riverbanks over much of Europe. Raffaele Piria [an Italian chemist] then working at the Sorbonne in Paris split salicin into a sugar and an aromatic component (salicyladehyde) and converted the latter‚ by hydrolysis and oxidation‚ to an acid of crystallized colorless needles‚ which he named salicylic acid. (1838). the problem was that salicylic acid was tough on stomachs and a means of ‘buffering’
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important trade goods noted in the text indicate that the Arabian peninsula was very wealthy due to the considerable role trade and agriculture played in their economy. The success of their economy was based on the cultivation and trade of spices and aromatics. Advanced irrigation
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Dice 1 tablespoon of ginger root and 1 teaspoon of turmeric root‚ and add them into the pan to cook with the garlic. The ginger and turmeric should cook for about three minutes in order to release all of their flavors into the food. Once the aromatics have cooked‚ add ¼ cup of water into the pan. Bring the water to a boil‚ and let it thicken the roots. Cut the two green chilies in half‚ and add them into the pan. Add the turkey‚ a teaspoon of spicy chili powder‚ and ½ tea- spoon of garam masala
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