NAME: Instrumental Analysis - Graded Homework 3 (due Thursday March 24 in class) 25 points 1. (15 pts) The molecule cthyl acetoactetate has a mass spectrum with several peaks at mass-to- charge ratios of 43.0, 88.0 and 130.1 among others. The molecule was ionized with electron impact ionization. The peak at m/z of 43.0 is the strongest peak in the mass spectrum. a. Briefly describe how electron impact ionization works and why it usually results in the observation of multiple m/z peaks in the mass spectrum. b. Why is it important to calculate the natural abundant mass and not the common molar mass of a molecule when analyzing its mass spectrum? c. Identify the base peak and molecular ion peak in m/z values and briefly explain why you assign the peaks at those m/z values to those specific peaks