Model 6: Intensities of [M+1]* Peak and [M+2]* PeakOn a mass spectrum, the height of given peak is proportional to the number of molecules with thatmass. Note that in the table below the [M] peak happens to be the base peak.MoleculeMethaneEthanePropaneButaneOctaneBromomethaneCH3BrBromoethaneCH3CH₂BrChloromethaneCH3CIChloroethaneCH3CH₂CIa.b.C.[M]*m/z (intensity)16 (100)30 (100)44 (100)58 (100)114 (100)94 (100)12CH37⁹Br108 (100)d.50 (100)Critical Thinking Questions24. Fill in the m/z values for the [M+1] column in Model 6.64 (100)[M+1]*m/z (intensity)17 (1.1)31 (2.2)number of carbon atoms =number of carbon atoms =[M+2]*m/z (intensity)Explain why the intensity of the [M+1]* peak for ethane is twice as high as the [M+1] peakfor methane. (Hint: Look back at CTQ's 18-22.)Fill in the [M+1]* intensities for all molecules in the table.True or False: When [M]* has an intensity of 100, the following formula can be used tocalculate the number of carbons in the molecule.ΝΑΝΑintensity of [M+1]* peak1.1ΝΑΝΑΝΑMemorization Task L2.2: Formula for calculating number of carbons from [M+1]* intensity100intensity of [M+1]* peak1.1intensity of [M]* peakThis [M+1] formula can be used regardless of the intensity of the [M] peak.XConfirm that the formula in Memorization Task L2.2 reduces to the one in part c of thisquestion when [M] has an intensity of 100. Memorization Task L2.3: Formula for calculating number of oxygens from [M+2]+ intensitynumber ofoxygen atoms =100intensity of [M+2]* peak0.2intensity of [M]* peak25. The formula in Memorization Task L2.3 can be used to calculate the number of oxygen atoms in amolecule. By analogy to these two formulas, fill in the blanks in Memorization Task L2.4 to givea formula for calculating the number of sulfur atoms in an unknown molecule.Memorization Task L2.4: Formula for calculating number of sulfurs from [M+_]* intensitya.Note that the formulas above work only when only one element is making a significant contribution tothe [M+1] or [M+2]* peak. For example, as we will see in the next section, you cannot use theformula to calculate the number of oxygen or sulfur atoms when there is a Cl or Br present.26. Fill in m/z values in the [M+2] column in Model 6.b.XC.number ofsulfur atoms =d.e.XFor each compound containing Br or Cl, draw the most common molecule responsible for eachpeak in that row. Be sure to include isotopic labels for each nonhydrogen atom (The first boxis done for you.) (Hint: Look back at the entries for Br and Cl in Model 5.)Fill in the intensities for each box in the [M+2]* column.Why is there no significant [M+2]* peak for the first five rows?What elements other than Cl and Br will generate a noticeable [M+2]* peak?(Hint: Look at the table in Model 5.)Fill in the blanks in the following two statements:(1) If the intensities of the [M+2] and [M]* peaks are approximatelyequal, then there is likely oneatom in the molecule.(2) If the intensity of the [M+2]* peak is about one-third that of the [M]* peak, there isatom in the molecule.likely one

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To explain why [M+1]+ peak for ethane is twice than [M+1]+ peak of methane. 
 
 
"Since you have…