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Answer the following questions for the pi molecular orbitals of 1,3,5,7-octatetraene. 1. Which are the bonding MOs, which are the antibonding MOs? 2. Which MOs are symmetric and which are antisymmetric? 3. Which MO is the HOMO and which is the LUMO in the ground state? 4. Which MO is the HOMO and which is the LUMO in the excited state? 5. How many nodes does the highest-energy molecular orbital of 1,3,5,7-octatetraene have between the nuclei?
calculate the volume of air at 30 degrees celcius and 1 atm that is needed to burn completely 10 grams of propane. assume that air is 21 percent oxygen by volume
Predict the order of elution for the silica gel adsorption TLC separation of the mixture containing benzyl alcohol, benzaldehyde, and benzoic acid using methylene chloride solvent. Explain
A beaker with 185 mL of an acetic acid buffer with a pH of 5.00 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 6.70 mL of a 0.440 M HCl solution to the beaker.
Can complex compounds like dioxin and furan actually be thermally oxidized and destroyed?? At what temperature would these compounds actually be destroyed.
Work out the solubility of copper(II)sulfide. Take it that 1 litre of the mixture weighs 1 kg. (in g/100g), CuS (s) Cu^2+ (aq) + S^2- (aq)
The % ionization of a weak acid always declines in a solution that contains the salt of the anion relative to a solution of the acid alone. For example the % dissociation of the acetic acid is less in a solution that contains sodium acetate than i..
What is the difference between a "single beam" and a "double beam" instrument. What are some advantages and disadvantages for each of these instrument designs
How much PPP do you need to make 500ml of the solution if you only have 25g and you know that the MW of PPP is 478 g/mole.
When a 1.50x102 g strip of zinc is dropped into a large beaker containing excess hydrochloric acid, how many grams of gas are formed?
balanced chemical equation for the reaction of aluminum with aqueous copper(II) sulfate producing copper metal and aluminum sulfate
A mixture of 10.0g of Ne and 10 g Ar have a total pressure of 1.6atm. What is the partial pressure of Ne
Determine the atomic number and valence orbital that is filling for the element that would appear below radium in the periodic table.
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