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Depict the molecular orbital diagrams for the pi molecular orbitals of ethylene and 1,3 butadiene. State the HOMO and LUMO for each molecule.
1. Show 2 possible ways to combine the molecular orbitals of 1,3 butadiene and ethylene to get constructive overlap.
-Utilizing molecular orbital diagrams, explain why ethylene plus ethylene cycloadditions don't take place thermally but are allowed photochemically.
-Forecast whether a [4+4] cycloaddition reaction between 2 molecules of butadiene will take place thermally or photochemically.
An unknown compound X is one of the four compounds listed in the Table below. A mixture of X with benzoic acid melts at 89 degrees Celsius, a mixture of X with phenyl succinate melts at 90 degrees Celsisus, and a mixture of X with m-aminophenol me..
Identify the substance produced in the liver that helps catalyze this reaction.
if a container can hold 2.0 gallons and 5.0 liters of water are added, how many more liters of water can be added to completely fill the 2.o gallon container? [ 1 gallon = 4 qts]
how many moles of H2 gas should be taken up by 1-octene in course of this reaction. What volume does this correspond to at STP.
why was Mendeleev's decision to leave blank spaces on his table sometimes was referred to as his most significant contribution to the periodic table?
The IR Spectra of solid benoic acid and liquid acetic acid are shown below. The OH stretch of a carboxylic acid is normally a broad peak from 3500-2500 cm-1. Explain why acetic acid has a very broad intense and prominent peak in this area but benz..
calculate the entropy of a sample of a solid in which the molecules may be found in any one of four orientations with
Given that the ionizable atoms are associated with carboxyl groups, draw a plausible structure for maleic acid
Write a reaction mechanism for the reaction of (Z) 3-methyl-3-hexane with Cl2 and H2O. Use curved arrows to show electron movements and clearly show the structures of the reaction intermediates and the final product.
Calculate w (in kJ) when 538 g iron (III) oxide (MM = 159.7 g/mol) reacts with excess carbon to produce carbon dioxide gas at 479 K: 2Fe2O3(s) + 3C(s) ? 4Fe(s) + 3CO2(g)
What is the cell potential for the reaction Mg (s)+ Fe2+(aq)=> Mg2+(aq)+ Fe (s) at 79 C when Fe 2+= 3.30 M and Mg2+= 0.310 it M.
During studies of the reaction below, 2 N2H4(l) + N2O4(l) ? 3 N2(g) + 4 H2O(g) a chemical engineer measured a less-than-expected yield of N2 and discovered that the following side reaction occurs
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