The 2d particle in a box model can be used to describe the spectra of aromatic hydrocarbons. assume a rectangular box that extends one bond length beyond the carbon atonm contain the hydrogen atoms in the box. hint: you wil have to use some trigonometry basics to get the relevant dimensions.
a. calculate the first three electronic transitions for napthalene (bond length 1.42 angstroms)
b. calculate the first three electronic transitions for pyrene (bond length 142 angstroms)

For the following dehydrohalogenation (e2) reaction, draw the zaitsev product(s) resulting from elimination involving c3–c4 (i.e., the carbon atoms depicted with stereobonds). show the product stereochemistry clearly. if there is more than one organic product, both products may be drawn in the same box. ignore elimination involving c3 or c4 and any carbon atom other than c4 or c3.

How many oxygen atoms are there in 3.15 moles of hcl manganese (iv) oxide, mno2

what is your question? collegechemistry 5+3 pts in november 1987, a massive iceberg broke loose from the antartic ice mass and floated free in the ocean. the chunk of ice was estimated to be 98 mi long, 25 mi wide, and 750 ft thick. a typical backyard swimming pool contains about 24,000 gallons of water. how many of these pools could you fill from the water in this iceberg? (assume the iceberg is a rectangular solid of the above dimensions and consists of water only). express answer in scientific notation.