3. Which of the following peaks does not appear in the mass spectrum of hexane? Draw the ions corresponding to the other three peaks. A. m/z = 57 B. m/z = 86 =1 C. m/z = 36 D. m/z = 43

Following is the mass spectrum of an unknown compound. The two highest peaks are at m/z 120 and 122. Suggest a structure for this compound. (Data from http://webbook.nist.gov/chemistry/.)

2. In a mass spectrum of a compound, the following data (intensity) is given. M+ = 80, M+ +1 = 8.8, M+ +2 = 26. This compound will have carbons and will contain a a. 8, sulfur b. 9, silicon c. 10, chlorine d. 11, bromine

you have an uknown compound you need to identify its EI mass spectrum shows a peak at m/z 198 with an intensity of 57, and a peak at m/z 200 with an intensity of 19. there are no peaks with m/z 200. what does this mean? A. the compound contains a nitrogen atom B. the compound contains approximately 30 carbon atoms C. the compound contains a bromine atom D. the compound contains a chlorine atom

The mass spectrum below corresponds to acetone (C,H,O). What is the likely chemical composition of the ion that generates the tallest peak in the spectrum? A CH; B C₂H₂O* C C₂H₂0 D CO* Adve MALUPECTUR 14

The mass spectrum of an unknown compound has a molecular ion peak with a relative intensity of 56.11% an an M+1 peak of 5.70%. How many carbon atoms are in the compound? (Fill in an integer number)

Mass spectroscopic.  What is the isotopic peak pattern of each : Organic compound with 2 bromine atoms. Organic compound with 2 chlorine atoms.

Which of the following statements about the mass spectrum of CH3Br is correct? A.) presents two peaks of intensity 3: 1 with m / z equal to 94 and 96 b.) presents two peaks of equal intensity with m / z equal to 94 and 96 C.) presents a single peak of the molecular ion with m / z of 44 D.) has a single peak of the molecular ion with m / z of 95

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Using the rule of 13, what is a possible formula for M-86 (100%) on a mass spectrum? Additional info-IR Spec: 3045 cm¹ (s) O C4H₂CI O C6H₁4 none of the above are possible molecular formulas