In the mass spectrum of an unknown organic compound, the molecular ion had a relative abundance of 20.9 while the M+1 had a relative abundance of 1.2. Estimate the number of carbons in the molecule.

Carbon has two stable isotopes, 12C, abundance 98.892%, and 13C, abundance 1.108%. In the mass spectrum of a hydrocarbon that contains five carbon atoms, what would you expect to be the relative height of the M+ to the M+1+ peak? Explain.

Is this correct answer 52.144%Please show me the work with this correct answer 52.144%

O Macmillan Learning Calculate the molecular mass (molecular weight) of lauric acid, C₁2H24O2. molecular mass = amu

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Given the following mass spec data, what is the molecular formula of the compound? (Show pertinent calculations on your submitted work.)                Mass             Intensity            104 (M+)        19.8            105               1.09            106               0.83

Determine the number of atoms of O in 25.0 grams of C₁₂H₂₂O₁₁.