need help with this if possible, also please explain a bit about how the answer was found especially for the IR spectrum.

1. Morphine is an important analgesic compound used for pain management. The molecular formular for morphine is C +HNO3. Calculate the hydrogen deficiency index for morphine (show your work for full credit). 2. Infrared spectroscopy is a useful technique in forensic chemistry, particularly in crime laboratories, for identifying unknown substance that have been seized from drug impoundments. Shown below are the structures of four compounds that all exist as white powders. Match the infrared spectra labeled A-D (on the following page) to the four compounds shown below using diagnostic IR signals for each molecule. Place the letter of the corresponding IR spectra in the box next to the molecule. HC-N IR Spectra CO CHE cocaine NHCH CHE IR Spectra methamphetamine IR Spectre HO y-hydroxybutyrate HO HO IR Spectra O O 0 HO OH HO 1 " OH Sucrose B m We D