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Thomas Jefferson Snodgrass found an unlabelled reagent bottle in his -80 C freezer. The Bottle contained a liquid. He found that the compound( compound 1) quickly evaporated when warmed to room temperature. H-NMR of the compound showed only two peaks, one, a triplet, was at .92 ppm and integrated to 6 protons and a second at 1.08 ppm that was a quintet and integrated to 4 protons. Jeff treated the sample with Br2 and light followed by sodium t-butoxide and isolated a new compound( compound 2 which was also a gas at room temperature). NMR of compound 2 showed a doublet at 1.53 ppm that integrated to 6 protons and a quartet at 5.01 ppm that integrated to 2 protons. Treatment of compound 2 with O3 followed by dimethylsulfide and water produced a single compound ( compound 3). An IR spectrum of compound 3 had moderate peaks at 2996, 2836, 2736 and 1114 cm-1 and a strong peak at 1727 cm-1. Use the cluse in the story to identify and draw the structures of compounds 1, 2, and 3.
Calculate the cost of 40 mL of sulfuric acid. given that Sulfuric acid (18 M) = $54.30/2.2 L
What mass of H2 forms if 12 grams of Zn reacts with 7 grams of HCl?
If a sample contains 79.0% of the R enantiomer and 21.0% of the S enantiomer, what is the enantiomeric excess mixture
What is the molarity of the solution that was prepared by dissolving 3.2 g of sulfuric acid in water to a total volume of 500 mL
Draw viable Lewis structures to illustrate how the element bromine can take part in an ionic bond, a pure covalent bond, and a polar covalent bond.
Urea (NH2CONH2), an important nitrogen fertilizer, is produced industrially by the reaction 2NH3 (g) + CO2 (g) --> NH2CONH2 (aq) + H2O (l). Given that delta G = -13.6 kJ, calculate delta G at 25 C for the following sets of conditions.
A human body contains 6 liters of blood. The hemoglobin content of blood is about 15.5g/100 mL of blood. The approximate hemoglobin molecular weight is 64,500g/mol. How many moles of hemoglobin are present in a typical adult
a retro calculation of the amount of Ni(Nh3)6Cl2 that is needed if 20mL of 0.10M HCl are used to neutralize ammonia. The number I got was 0.07727 g.
A reaction mixture contains 0.41 M I2, 0.27 M Br2 and 3.5 M IBr. Which of the following statements is TRUE concerning this system. I2(g) + Br2(g) 2 IBr(g) Kc = 1.1 × 102
Considering the likely HOMO and LUMO of L-serine methyl ester, what would be the most electrophilic atom and what would be the most nucleophilic atom
calculate the molarity of phosphoric acid in a solution that is 84% by mass phosphoric acid and has a dentisty of 1.87 g/m.
Predict the geometry of the following species using the VSEPR model. electron domain and molecular geometry.
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