< - this tall line is the border of the spectrum. lt is not a peak 20- 25 50 75 100 125 m/z compound. The compound which gave rise to this mass spectrum is most likely to: O contain bromine contain only carbon and hydrogen contain only carbon, hydrogen, and oxygen O contain chlorine Relative Ihtensity

< - this tall line is the border of the spectrum. lt is not a peak 20- 25 50 75 100 125 m/z compound. The compound which gave rise to this mass spectrum is most likely to: O contain bromine contain only carbon and hydrogen contain only carbon, hydrogen, and oxygen O contain chlorine Relative Ihtensity

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Similar questions

You have a unknown compound you need to identify - its El mass spectrum shows a peak at m/z=187 with an intensity of 84, and a peak at m/z = 188 with an intensity of 11. There are no peaks with m/z > 200. What does this %3D mean? The compound contains approximately 30 carbon atoms The compound probably contains a nitrogen atom The compound probably contains a bromine atom Not enough information to tell anything
Which one is the incorrect statement regarding mass spectrum? Question 25 options: In case of alcohols, M-18 peak is produced due to the loss of neutral H2O molecule (Dehydration) The relative heights of (M)+• peak and (M+1)+• peak is used to calculate the number of carbon atoms The structure likely contains a bromine atom if the (M+2)+• peak and (M)+• are almost similar in heights The molecular ion peak (M)+• always represent the base peak The structure likely contains a chlorine atom if the (M+2)+• peak is approximately one-third as tall as (M)+•
Identify the characteristic seen in the mass spectrum when there is a nitrogen in the compound. There are two molecular ions 2 units apart in a 3:1 ratio. The molecular ion has an even molecular mass. There are two molecular ions 2 units apart in a 1:1 ratio. The molecular ion has an odd molecular mass.
Draw the molecular ion (M) for this molecule formed in the mass spectrometer. H IIZ: H -e Q
1: Determine nominal m/z value peak 2: Assign the X+2 elements except oxygen (Br, Cl, Si, S) FIRST 3: Assign the X+1 elements (C & N) If N is known to be present, start with N remember to normalize X+1 to X, if necessary (when the X peak is not the base peak in the isotopic cluster) 4: Assign the atoms of oxygen after assigning number of C atoms because of the X+2 contribution from carbon6 can influence the assignment of the number of O atoms 5: Assign the X elements (hydrogen7 , F, P, I) 6: From the elemental composition, determine R+db 7: Propose a possible structure
UV absorption detectors can also be used in ion chromatography for the measurement of ions such as nitrite and nitrate but cannot be used to detect ions such as fluoride and chloride. Why? Select the correct response from the list below Nitrate and nitrite contain oxygen ions and as a result they absorb in the UV region of the spectrum. Fluoride and chloride do not contain any oxygen so don't absorb in the UV region Nitrate and nitrite contain N=N groups so they absorb in the UV region Fluoride and chloride do not contain any double bonds so don't absorb in the UV region Nitrate and nitrite contain chromophores and as a result they absorb in the UV region of the spectrum. Fluoride and chloride do not contain any chromophores so don't absorb in the UV region Nitrate and nitrite contain nitrogen ions and as a result they absorb in the UV region of the spectrum. Fluoride and chloride do not contain any nitrogen so don't absorb in the UV region
Using the rule of 13, what is a possible formula for M=113 (100%) on a mass spectrum? all of the above are possible molecular formulas CH130 CH15N
The tallest peak in a mass spectrum OA. has the highest charge OB. has the highest isotopic abundance O C. is called the molecular ion O D. is never the molecular ion OE. is called the base peak