Identification of Unknown: Calculation of the Hydrogen Deficiency Index (HDI): number of combinations of Structure: rings and/or double or triple bonds in your unknown. HDI= Possible combinations of rings and/or double and triple bonds (use r for rings, db for double bonds, tb for triple bonds): Name of Compound: Based on the acquired mass spectrum, please answer the questions below. What is your molecular ion (M+) peak? If possible, please draw the particular fragment below. What is your base peak? If possible, please draw the particular fragment below. How many carbons atoms in your sample? Do you have any nitrogen atoms in your sample? How do you know? Do you have any halogens atoms in your sample? Which halogens and how do you determine that