An experimental data set has been acquired to determine the structure of an unknown compound. (a) Elemental analysis gave an empirical formula of C:HsO and a molecular weight of 114. Give the molecular formula and calculate the number of double bond equivalents (DBES) for this compound. (b) Suggest which functional groups are present in this molecule by identification of characteristic absorbances in the IR spectrum below. 10 0.8 0.4 0.2 0.0 Transmitance

An experimental data set has been acquired to determine the structure of an unknown compound. (a) Elemental analysis gave an empirical formula of C:HsO and a molecular weight of 114. Give the molecular formula and calculate the number of double bond equivalents (DBES) for this compound. (b) Suggest which functional groups are present in this molecule by identification of characteristic absorbances in the IR spectrum below. 10 0.8 0.4 0.2 0.0 Transmitance

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...

See similar textbooks

Similar questions

The infrared spectrum of a compound is unique to the types and number of bonds in the molecule. Draw the structures of salicylic acid and aspirin. What are the key differences of the IR spectrum of aspirin with that of the starting material, salicylic acid? What are the similarities? Interpret the IR spectra of each by assigning the major peaks.
question 17
Suggest structures given the 1H NMR spectra and formulas for each of the compounds below. C9H10O
QUESTION 8 Select the functional group present in the molecule with formula C7H₁20 and the IR spectrum seen below: LOD TRANSMITTANCE!! 5D D+ 4000 2932 4 1396 2908 1362 13 2856 8 2809 37 2705 35 1727 5 1461 Alcohol Aldehyde Ether Ketone 1351 1329 1300 1285 17 1267 3000 64 66 72 72 6B 62 72 70 1233 1224 74 84 1189 1170 7 70 64 1156 1144 BO 68 1133 2000 66 1099 1084 58 68 1050 1038 72 72 1033 1025 70 967 42 HAVENUMBERI- 943 67 916 55 893 52 842 74 829 74 761 681 Click Save and Submit to save and submit. Click Save All Answers to save all answers. 72 66 1500 mm www 1000 mm 500
The functional groups in an organic compound can frequently be deduced from its infrared absorption spectrum. A compound exhibits strong, broad absorption between 3300 and 3500 and at 1050 cm-1. Relative absorption intensity: (s)=strong, (m)=medium, (w)=weak. What functional class(es) does the compound belong to? List only classes for which evidence is given here. Attach no significance to evidence not cited explicitly. Do not over-interpret exact absorption band positions. None of your inferences should depend on small differences like 10 to 20 cm-1. The functional class(es) of this compound is(are) -(Enter letters from the table below, in any order, with no spaces or commas.) a. alkane (List only if no other functional class applies.) b. alkene c. terminal alkyne d. internal alkyne h. amine i. aldehyde or ketone j. carboxylic acid k. ester I. nitrile e. arene f. alcohol g. ether
predict the structure of the unknown compound using the image attached. Annotate all spectraEach spectra must be used to arrive at the answerThis means each piece of provided information should be annotated in some way depending on the type of analysis and information gained from it.calculate the HDI for proposed structure and provide the chemical formula
Using the NMR spectrum, draw the structur of this molecule: C7H14O
Analysis of a sweet-smelling, neutral compound of carbon, hydrogen and oxygen produced the following results: %C = 54.5; %H = 9.1. From its mass spectrum, the molecular ion had a mass/charge ratio of 88. Its infra-red spectrum showed a prominent peak at 1735 cm–1. Figure below shows the NMR spectrum of the compound. Suggest a structural Formula for this compound.
The infrared spectrum of a compound has a strong absorption at 1669 cm. The mass spectrum of the compound is provided below. What is the structure of the compound? 100 - 80 - 60 40 20 0- 50 75 100 125 m/z OH NH2 Relative Intensity
Given is teh mass spectogram of an unknown compoound. This unstable cyclic compund is a colorless liquid with a sharp odor and reacts with light and air with long exposure. What is the molar mass of the target mecule? What is the Molecular formula of the target molecule? What IHD /U ? What could be the description of the structure? Give the name of the structure.
(a) (b) The quantum yield of fluorescence for anthracene is seen to be higher than that of biphenyl. Draw the two compounds and explain why this is so. The UV spectrum of isoquinoline has four 2 max values at 318, 305, 266 and 218 nm. Draw the compound and suggest what you would expect to happen if acid was added to solution and the spectrum is retaken.