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May 6, 2024 · The state of matter of reactants and products is designated with the symbols (s) for solids, (l) for liquids, and (g) for gases. Chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products. Substances are either chemical elements or compounds.
1 day ago · Synthesis of hexamine from formaldehyde. Measure formaldehyde solution. Take 4.7g of 30% formaldehyde solution in a beaker. Add ammonia solution. Add 7g of 24% ammonia solution until the solution becomes slightly alkaline. Heat and cool the solution. Heat the mixture in a water bath for 5 minutes and then allowed it to stand for 15 minutes.
2 days ago · Chemical reaction. A thermite reaction using iron (III) oxide. The sparks flying outwards are globules of molten iron trailing smoke in their wake. A chemical reaction is a process that leads to the chemical transformation of one set of chemical substances to another. [1] When chemical reactions occur, the atoms are rearranged and the reaction ...
May 14, 2024 · Prominently Ritter reaction is for synthesis of Heterocyclic compounds and secondary amides. Tertiary-, secondary, or benzylic alcohols, alkenes or alkyl halides are can be used for the generation of carbocation. Acid sensitive functional group of nitrile containing substrate will not sustain in strong acidic condition. Protic acids, Lewis ...
May 1, 2024 · Reactions of fatty acid synthesis catalyzed by fatty acid synthase, FAS. Only half of the normal head-to-tail (head-to-foot) dimer of functional FAS is shown. Synthesis of malonyl-CoA from CO 2 and acetyl-CoA is carried out by ACC as described. FAS is initially activated by the incorporation of the acetyl group from acetyl-CoA.
May 2, 2024 · The synthesis is carried out by condensation of phthalic anhydride with phenol, and involves an (acid-catalyzed) reaction of electrophilic aromatic substitution S E Ar. Phenolphthalein synthesis. The phenolphthalein is purified by recrystallization of the final product. Once recrystallized, the behavior of phenolphthalein, as an indicator, will ...
May 2, 2024 · Step A: protection of aniline (I) to give acetanilide (II). The reaction crude is poured into a beaker with 50 ml water and 40-50 g ice. The mixture is stirred well and the acetanilide crystals are collected by filtration in a Büchner. The product is recrystallized in water, approx. 200 ml, and decolorized with active carbon.
