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Explain why the Diels-Alder reaction of Anthracene and Maleic anhydride forms 9, 10-dihydroanthracene-9,10-a, ß-succinic anhydride. Basically I've been asked this and I'm not sure how to go about it. Endo vs Exo, sterio chem, energies, stability, electron withdrawing ect
A sample of K2S contains 1.35 g of potassium. How many moles of potassium sulfide are present in the sample
The isotope 22Na has a half-life of 2.60 years. How much of a 1.00 gram sample would be left after 1.00 yr
If the available valence electrons for a molecule or polyatomic ion does not complete all of the octets in an electron-dot formula, what should you do
Backside attack on the bromonium ion by a bromide ion results in a trans products. The bromine is added to opposite sides of the carbon-carbon double bond.
Determine the volume measured in a buret of a 0.2750M solution of HCl needed to consume all the calcium carbonate in a 2.5 x 1.0 x 0.5 in block.
Explain in some detail-consider solvent, nucleophile, and substrate structure. Provide the appropriate mechanism for the reaction of bromocyclopentane in sodium iodide /acetone. 2. Why do the reactions in NaI /acetone go to completion
it is found that 1.431 g of element x contains 7.509 times 1021 atoms. the atomic mass of x is? how many protons does
Show the mechanism for the preparation of 1-bromobutane from 1-bromobutanol reacting with NaBr and sulfuric acid. an sn2 mechanism and one step.
The conversion of methane to ethane is done by reacting the methane with oxygen and it produces water as well as ethane. write the equation and calculate K for the reaction at 25c and 500c. Explain how the reaction is an example of driving a non-s..
Explain why rotation about N-Ca and Ca-C bonds is solely responsible for the secondary structure of a polypeptide
a sample of He gas has a volume of 900 mL and a pressure 2.50 atm at 298 K. What is the new pressure when the temperature is changed to 336 K and the volume is decreased to 450 mL?
The equalibrium constant for the reaction AgBr(s) Ag^+(aq)+Br^-(aq) is the solubility product constant, Ksp=7.7x10^-13 at 25 degrees C. Calculate deltaG for the reaction
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