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Download Comprehensive Organic Synthesis: Combining C-C pi-Bonds by L.A. Paquette PDF

By L.A. Paquette

The tenet underlying the subject material particularly compiled in quantity five has been to make on hand to the natural chemical group a sourcebook comprehensively overlaying all of the vital &pgr;-bond-dependent changes. Thermal, photochemical, and metal-catalyzed cycloadditions of each significant kind are expertly special by way of the main an expert researchers in those parts. The synthetically helpful electrocyclic and sigmatropic approaches the place alkenic facilities are in detail considering the structural swap are equally canvassed in compact aspect. With additional cognizance given to ene reactions, small-ring rearrangements, and similar transition metal-associated reactions, insurance has been accomplished of the entire variety of natural changes without delay concerning the rebonding of alkenic facilities. consequently, this quantity may still function the great sourcebook of the sector for the following decade and past.

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001 g (10). Calculate the weight of the recovered sand by subtraction (11). 15. Calculate a. Percentage yield using the formula: % yield ϭ Harcourt, Inc. grams of solid recovered ϫ 100 grams of initial sample Experiment 4 43 b. 132 g (original sample) Chemicals and Equipment 1. 2. 3. 4. 5. 6. 7. 8. 9. 44 Unknown mixture Balances Boiling chips Evaporating dish, 6 cm Filter paper, 15 cm Mortar and pestle Oven (if available) Ring stands (3) Rubber policeman Experiment 4 Harcourt, Inc. NAME SECTION PARTNER GRADE DATE Experiment 4 PRE-LAB QUESTIONS 1.

Weight of filter paper and copper, Cu ______________ g 4. Weight of Cu: (3) Ϫ (2) ______________ g 5. Weight of Cl in sample: (1) Ϫ (4) ______________ g 6. Gram atomic weight of Cu ______________ g 7. Gram atomic weight of Cl ______________ g 8. Number of moles of Cu atoms in sample: (4)/(6) ______________ moles 9. Number of moles of Cl atoms in sample: (5)/(7) ______________ moles 10. Mole ratio of Cu atoms to Cl atoms: (8)/(9) ______________ 11. Simple whole number mole ratio of Cu atoms to Cl atoms ______________ 12.

Wear gloves when working with this acid. 8. Place in separate clean, dry test tubes (100 ϫ 13 mm) 2 mL of distilled water and 2 mL of the residue liquid from the boiling flask. Obtain a clean nickel wire from your instructor. In the hood, dip the wire into concentrated nitric acid and hold the wire in a Bunsen burner flame until the yellow color in the flame disappears. Dip the wire into the distilled water sample. Put the wire into the Bunsen burner flame. Record the color of the flame. Repeat the above procedure, cleaning the wire, dipping the wire into the liquid from the boiling flask, and observing the color of the Bunsen burner flame.

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