Please answer a, b,c and d

PRE-LAB ASSIGNMENT to recorded in your lab notebook: a. Use the internet (Wikipedia is fairly trustworthy in this case or you can use an image search in Google) to look-up and record the structures of each of these compounds in your lab notebook: Avobenzone, Cinoxate, Octisalate, Sulisobenzone. b. What structural feature (not involving oxygen) do all of these compounds have in common? c. Describe the three UV Light ranges by giving the wavelengths of each. d. Turn to 2 clean pages of your notebook and create a large data table the spans across the pages with 10 columns. On the left hand side, in the first column, write the wavelengths going down the page starting at 200nm and increasing my 10nm to 400 nm. Then label the columns with the sample names above. e. (optional) bring colored pencils/pens to lab for making graphs Introduction Recalling what we have learned about light