1. Briefly describe stepwise, with the use of graph and equation, how one can determine the absorptivity given 5 solutions of known concentration.
2. Describe some of the vibrational mode at stretching and bending associated with Infrared Spectroscopy. Draw representative structure denoting such vibrational modes.
3. Draw and label the energy level diagram that display all mode of the electron conversion process from rest to excited state and its associated emission states.
4. Using Standard Addition Technique, briefly describe stepwise, how one can determine the concentration of an unknown solute. Please include any plots and equation as needed.