Can someone please help me with these problems please? thank you Provide the che
ID: 498112 • Letter: C
Question
Can someone please help me with these problems please? thank you
Provide the chemical formula (s) for a hydrocarbon with a mass similar to: a) 16^O b) 14_N 35_Cl 37 Cl C 79^Br & 81^Br Use the rule of 13 and IHD to provide the information below. a) Provide all possible structures (isomers) for a molecular ion peak at 74 m/z that contains only C and H atoms and one O atom. b) Provide all possible structures (isomers) for a molecular ion peak at 74 m/z that contains only C and H atoms and two O atoms. An unknown compound A is a liquid, bp 141^degree C. The MS shows a molecular ion at 74 m/z. Other important peaks found in the MS spectrum are: 57 and 29 m/z. The IR spectrum revealed frequencies (cm at 3500 2800 (broad), 3000, 1705, 1465, 1375, 1150. Compound A is soluble in water and aqueous KHCO_3 based on the solubility tests. Propose a structure for compound A that matches your spectral interpretation. Briefly, provide a short narrative to describe the rationale behind your propose structureExplanation / Answer
A) Molar mass of 16O = 16
Hydrocarbon with similar molar mass = CH4
B) Molar mass of 14N = 14
Hydrocarbon with similar molar mass = CH2
C)
Molar mass of 35Cl = 35
Molar mass of 37Cl = 37
Total molar mass = 35+ 37 = 72
Hydrocarbon with similar molar mass = C5H12 = CH3CH2CH2CH2CH3 = n-pentane
D)
Molar mass of 79Br = 79
Molar mass of 81Br = 81
Total molar mass = 79 + 81 = 160
Hydrocarbon with similar molar mass = C12H16