By knowing the natural abundance of minor isotopes, it's possible to calculate the relative heights of M* and M+1 peaks. If natural abundances are 12C - 98.9% and 13C - 1.10%, what are the relative heights, to the nearest 0.1%, of the M* and M+1 peaks in the mass spectrum of lactic acid, C3H,03? Ignore the contributions of isotopes like ²H (deuterium; 0.015% natural abundance) and 17o (0.04% natural abundance) that are small. The relative heights are, in order of increasing mass: 100 to

By knowing the natural abundance of minor isotopes, it's possible to calculate the relative heights of M* and M+1 peaks. If natural abundances are 12C - 98.9% and 13C - 1.10%, what are the relative heights, to the nearest 0.1%, of the M* and M+1 peaks in the mass spectrum of lactic acid, C3H,03? Ignore the contributions of isotopes like ²H (deuterium; 0.015% natural abundance) and 17o (0.04% natural abundance) that are small. The relative heights are, in order of increasing mass: 100 to