1. What is the chemical formula of the unknown?
2. what is the mass of the unknown?
3. What is the HDI?
4. According to IR spectra, what functional groups are present?
5. What is the structure of the molecule?
Homework Answers
1. C9H10O2
2. 150.17 g/mol
3. Compound have no N and halogens so HDI=(2xNc+2-NH)/2=((2x9)+(2-10))/2=5
4. Peak at 1700 cm-1 corresponds to C=O strech, and peaks at 1300 and 1100 corresponds to C-O strech. Thus the compound contains ester as functional group.
5) From IR we got the functional group present. Further structural elucidation was done using NMR spectroscopy and Mass spectrometry. The Structure and elucidational details are attached as JPEG
Add Answer to:
1. What is the chemical formula of the unknown?
2. what is the mass of the...
Question 5: (11 marks) Compound B, which contains only carbon, hydrogen and oxygen atoms, shows the...
Question 5: (11 marks) Compound B, which contains only carbon, hydrogen and oxygen atoms, shows the mass, IR, H NMR and C NMR spectra given below a) With brief explanation, deduce the structure of Compound B b) Explain the mass spectroscopic signals at m/z 122, 105 and 77. Mass Spectrum 122 M° 150 70 90 100 110 120 130 140 150 150 170 180 100 200 mve Infrared Spectrum Wave Number,cm- 4000 3000 250 2000150 13 1 11001000900 80 Wavelengihn,...
Compound is a liquid, boiling point 136 C. The Mass, IR, and H NMR spectra, along with C NMR data, are given below....
Compound is a liquid, boiling point 136 C. The Mass, IR, and H NMR spectra, along with C NMR data, are given below. Elemental Analysis: C, 90.51; H, 9.49. Mass Spectrum 106 30 50 70 500 110 120 130 140 150 100 170 ao 10 2001 mie Infrared Spectrum Wave Number, om 4000 3000 2500 2000 1500 1300 1200 100 1000 900 10 13 11 Wavelength, microns H NMR 2 pom, & Structure: C Spectral Data: singlet, 140.2 ppm doublet,...
Compound C has molecular formula C9H10O. The mass spectrum shows a parent ion (M+) peak at...
Compound C has molecular formula C9H10O. The mass spectrum shows a parent ion (M+) peak at 134 and a base peak (largest peak) at 105 atomic mass units. The IR spectrum shows major signals at 3029, 2925, 2721, 1708, 1495, 1452, 1375, 1152, 745, and 699 cm-1. The 1H-NMR spectrum shows signals at 2.35 (singlet, 3H), 3.65 (doublet, 2H), 7.11 (doublet 2H), 7.18 (doublet, 2H), and 9.73 (triplet, 1H) ppm. The 13C-NMR spectrum shows signals at 21.1, 50.2, 128.7, 129.5,...
FOR EACH DETERMINE (if applicable): • MS DATA • IR DATA • HNMR DATA • CNMR...
FOR EACH DETERMINE (if applicable):
• MS DATA
• IR DATA
• HNMR DATA
• CNMR DATA
• MOLECULAR FORMULA
• MOLAR MASS
• STRUCTURE AND EVIDENCE
Compound 56 is a high-boiling liquid (boiling point 229 C) that does not react with I, in aqueous base to give a yellow precipiale of CHI, (a negative iodoform test). The Mass, IR, and 'H NMR spectra, along with 1C NMR data, are given below. Analysis: Elemental C, 81.04; H, 8.16; O, 10.80....
(c) Compound C has molecular formula C9H10O. The mass spectrum shows a parent ion (M+) peak...
(c) Compound C has molecular formula C9H10O. The mass spectrum shows a parent ion (M+) peak at 134 and a base peak (largest peak) at 105 atomic mass units. The IR spectrum shows major signals at 3029, 2925, 2721, 1708, 1495, 1452, 1375, 1152, 745, and 699 cm-1. The 1H-NMR spectrum shows signals at 2.35 (singlet, 3H), 3.65 (doublet, 2H), 7.11 (doublet 2H), 7.18 (doublet, 2H), and 9.73 (triplet, 1H) ppm. The 13C-NMR spectrum shows signals at 21.1, 50.2, 128.7,...
Compound 21 is a liquid (boiling point 60" C) that has Z stereochemistry. The Mass, IR, and H NMR spectra, along with 1...
Compound 21 is a liquid (boiling point 60" C) that has Z stereochemistry. The Mass, IR, and H NMR spectra, along with 13C NMR data, are given below. Elemental Analysis: C, 24.78; H, 208; contains a halogen Mass Spectrum 61 96 98 30 40 50 60 70 80 90 100 110 120 130 140 150 180 170 180 190 200 mVe Infrared Spectrum Wave Number, cm - 4000 3000 2500 1500 2000 1300 1200 1100 800 700 1000 900 ww...
what is the structure C NMR data, are Compound 14 is a low-melting solid (melting point...
what is the structure
C NMR data, are Compound 14 is a low-melting solid (melting point 45-49 "C). The Mass, IR, and H NMR spectra, along with given below. Elemental Analysis C, 85.69, H, 5.53; 0,8.78 Wave Number, om LLLLLL 'H NMR Structure: "C Spectral Data: singlet, 187.0 ppm singlet, 137.8 ppm doublet, 132 2 ppm doublet, 130.1 ppm doublet, 128.2 ppm C ole Company
Please intereperet all spectra fully. Solid U IR Mass Spec. Mt 100- 80 60- 40 0...
Please intereperet all spectra fully.
Solid U IR Mass Spec. Mt 100- 80 60- 40 0 50 75 100 150 175 m/z Solid U H-NMR doublet, 2H doublet, 2H broad singlet, 1H PPM "C-NMR PPM Solid Unknown Information: Unknown #: Melting Point Infrared Analysis: Explain below how the infrared spectrum led you to select the functional group present in your unknown. Remember, your unknown must belong to one of the following functional groups: alcohol, aldehyde, amine, carboxylic acid, ketone, or...
Question 2 The 13 C-NMR spectrum of an unknown compound (formula CgH180) is shown below. Its...
Question 2 The 13 C-NMR spectrum of an unknown compound (formula CgH180) is shown below. Its "H-NMR spectrum only shows one singlet at 1.2 ppm. Draw the structure of this unknown compound. 240 220 '200'180' 160140120100' 80' 604020 PPM H3CU CH3 CH3 CH3 Create OscerSketch Answer 2 Incorrect: Answer has an incorrect structure. What would be the expected splitting pattern of the signal associated with the indicated hydrogen atoms? Question 3 A. singlet B. doublet C. triplet D. quartet E....
The H-NMR spectrum of an unknown compound (formula CaHgO2) is shown below. Draw the structure of...
The H-NMR spectrum of an unknown compound (formula CaHgO2) is shown below. Draw the structure of the unknown compound. Question 5 4 1 6 5 8 10 11 Ppm The 13C-NMR spectrum of an unknown compound (formula CgH180) is shown below. Its 1H-NMR spectrum only shows one singlet at 1.2 ppm. Draw the structure of this unknown compound. uestion 2 220 200 160 140 120 PPM 100 80 240 180 60 40 20 Create OscerSketch Answer 2 What would be...
Question 5: (11 marks) Compound B, which contains only carbon, hydrogen and oxygen atoms, shows the mass, IR, H NMR and C NMR spectra given below a) With brief explanation, deduce the structure of Compound B b) Explain the mass spectroscopic signals at m/z 122, 105 and 77. Mass Spectrum 122 M° 150 70 90 100 110 120 130 140 150 150 170 180 100 200 mve Infrared Spectrum Wave Number,cm- 4000 3000 250 2000150 13 1 11001000900 80 Wavelengihn,...
Compound is a liquid, boiling point 136 C. The Mass, IR, and H NMR spectra, along with C NMR data, are given below. Elemental Analysis: C, 90.51; H, 9.49. Mass Spectrum 106 30 50 70 500 110 120 130 140 150 100 170 ao 10 2001 mie Infrared Spectrum Wave Number, om 4000 3000 2500 2000 1500 1300 1200 100 1000 900 10 13 11 Wavelength, microns H NMR 2 pom, & Structure: C Spectral Data: singlet, 140.2 ppm doublet,...
FOR EACH DETERMINE (if applicable):
• MS DATA
• IR DATA
• HNMR DATA
• CNMR DATA
• MOLECULAR FORMULA
• MOLAR MASS
• STRUCTURE AND EVIDENCE
Compound 56 is a high-boiling liquid (boiling point 229 C) that does not react with I, in aqueous base to give a yellow precipiale of CHI, (a negative iodoform test). The Mass, IR, and 'H NMR spectra, along with 1C NMR data, are given below. Analysis: Elemental C, 81.04; H, 8.16; O, 10.80....
Compound 21 is a liquid (boiling point 60" C) that has Z stereochemistry. The Mass, IR, and H NMR spectra, along with 13C NMR data, are given below. Elemental Analysis: C, 24.78; H, 208; contains a halogen Mass Spectrum 61 96 98 30 40 50 60 70 80 90 100 110 120 130 140 150 180 170 180 190 200 mVe Infrared Spectrum Wave Number, cm - 4000 3000 2500 1500 2000 1300 1200 1100 800 700 1000 900 ww...
what is the structure
C NMR data, are Compound 14 is a low-melting solid (melting point 45-49 "C). The Mass, IR, and H NMR spectra, along with given below. Elemental Analysis C, 85.69, H, 5.53; 0,8.78 Wave Number, om LLLLLL 'H NMR Structure: "C Spectral Data: singlet, 187.0 ppm singlet, 137.8 ppm doublet, 132 2 ppm doublet, 130.1 ppm doublet, 128.2 ppm C ole Company
Please intereperet all spectra fully.
Solid U IR Mass Spec. Mt 100- 80 60- 40 0 50 75 100 150 175 m/z Solid U H-NMR doublet, 2H doublet, 2H broad singlet, 1H PPM "C-NMR PPM Solid Unknown Information: Unknown #: Melting Point Infrared Analysis: Explain below how the infrared spectrum led you to select the functional group present in your unknown. Remember, your unknown must belong to one of the following functional groups: alcohol, aldehyde, amine, carboxylic acid, ketone, or...
Question 2 The 13 C-NMR spectrum of an unknown compound (formula CgH180) is shown below. Its "H-NMR spectrum only shows one singlet at 1.2 ppm. Draw the structure of this unknown compound. 240 220 '200'180' 160140120100' 80' 604020 PPM H3CU CH3 CH3 CH3 Create OscerSketch Answer 2 Incorrect: Answer has an incorrect structure. What would be the expected splitting pattern of the signal associated with the indicated hydrogen atoms? Question 3 A. singlet B. doublet C. triplet D. quartet E....
The H-NMR spectrum of an unknown compound (formula CaHgO2) is shown below. Draw the structure of the unknown compound. Question 5 4 1 6 5 8 10 11 Ppm The 13C-NMR spectrum of an unknown compound (formula CgH180) is shown below. Its 1H-NMR spectrum only shows one singlet at 1.2 ppm. Draw the structure of this unknown compound. uestion 2 220 200 160 140 120 PPM 100 80 240 180 60 40 20 Create OscerSketch Answer 2 What would be...
Most questions answered within 3 hours.
-
Please answer true or false. Words
cannot be changed or added in to make it true...
asked 52 minutes ago -
An empty test tube weighs 15.923 grams. Then,
MgCl2•6H2O is added into the test tube. After...
asked 53 minutes ago -
(a) A piston at 6.1 atm contains a gas that occupies a volume of
3.5 L....
asked 53 minutes ago -
Assume memory access is 10 units of time and disk access is
10000 units of time....
asked 1 hour ago -
1. Are all good samples random?
2. Magazines often report surveys giving statistics such as “63%...
asked 1 hour ago -
Under all the various types of market structures, firms
must eventually earn some economic profits for...
asked 1 hour ago -
Consider the following fitness regime for a single locus trait
with two co-dominant alleles: w11 =...
asked 1 hour ago -
A large cable company reports the following.
80% of its customers subscribe to its cable TV...
asked 1 hour ago -
Please answer the question in brief.
Discuss the role of ERP in organizations. Are ERP tools...
asked 1 hour ago -
Discuss the pros and cons of collaborative software such
as SameTime. Does it increase productivity? What...
asked 1 hour ago -
Buying your in-laws a gift because it’s expected is
due to the ____________ motive of gift-giving....
asked 1 hour ago -
Calculate the expected value, the variance, and the standard
deviation of the given random variable X....
asked 2 hours ago