Calculate the m/z value for the molecular ion of the following compound: Interactive 3D display mode (i) Express your answer as an integer. * Incorrect; Try Again; 2 attempts remaining Calculate the m/z value for the molecular ion of the following compound: Interactive 3D display mode (i) Express your answer as an integer. Explain why the nitrogen rule holds. 1. An alkane has an even-mass molecular ion. If a group (14) of an alkane is replaced by an group (15), or if a group (15) of an alkane is replaced by an group (16), the molecular ion will have an mass. A second nitrogen in the molecular ion will cause it to have an mass. Thus, for a molocular ion to have an odd mass, it must have an number of nitrogens