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A student attempting to sulfonate styrene (vinyl benzene) obtains a by product that contains neither sulfur nor oxygen atoms. Efforts to nitrate styrene yield identical results. Of the 2 diastereomers of this product identified by GC, one is crystallized and characterized. Its IR spectrum features prominent bands at 3050, 2950, 1615, and 1500 cm-1, and its 1H and 13C NMR spectra are summarized below. Identify the product, assign its NMR and IR signals to the corresponding protons and bonds, and propose a mechanism for its formation. (You do not need to determine or explain the stereo chemical configuration.)
Conjugate-base anion of diethyl malonate The conjugate-base anion of diethyl malonate would be formed with sodium ethoxide, but it would not react with bromobenzene due to the
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Q. What is Activation Energy? Ans. Colliding molecules which overcome the activation energy form an activated complex. In the activated complex, original bonds are partial
qualitative analysis of cation
Atoms consists of protons, neutrons and electrons. If the mass of neutrons and electrons were made half and two times respectively to their actual masses, then the atomic mass of
how many branches of chemistry?
bomb calorimeter
1.why hardness Bore water less than sea water?
Physical properties of Amino acids (a) Amino acids are colourless, crystalline substances comprising sweet taste. They melt along with decomposition at higher temperature (much
How many atomic number does have Ne Because Ne has atomic number = 10 and F has atomic number = 9, the neon species that has 9 electrons is Ne+
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