Experimental Organic Chemistry: A Miniscale & Microscale Approach (Cengage Learning Laboratory Series for Organic Chemistry)
6th Edition
ISBN: 9781305080461
Author: John C. Gilbert, Stephen F. Martin
Publisher: Brooks Cole
expand_more
expand_more
format_list_bulleted
Question
Chapter 3.3, Problem 10E
a)
Interpretation Introduction
Interpretation:Whether an impurity always lowers melting point of organic compound is true or false should be determined.
Concept introduction:Melting point is temperature that involves conversion of substance from solid to liquid state. Both liquid and solid phases are present in equilibrium with each other at this temperature.
b)
Interpretation Introduction
Interpretation:Whether sharp melting point for crystalline organic substance always indicates pure single compound is true or false should be determined.
Concept introduction:Melting point is temperature that involves conversion of substance from solid to liquid state. Both liquid and solid phases are present in equilibrium with each other at this temperature.
c)
Interpretation Introduction
Interpretation:Whether addition of compound A that does not lower melting point of compound Xso Xis identical to A is true or false should be determined.
Concept introduction:Melting point is temperature that involves conversion of substance from solid to liquid state. Both liquid and solid phases are present in equilibrium with each other at this temperature.
d)
Interpretation Introduction
Interpretation:Whether addition of compound A that lowers melting point of compound Xis not identical to A is true or false should be determined.
Concept introduction:Melting point is temperature that involves conversion of substance from solid to liquid state. Both liquid and solid phases are present in equilibrium with each other at this temperature.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
1. Give a general statement regarding the stability of organic compounds and inorganic compounds.
2. Give a general statement as to the difference in solubility of organic and inorganic of compounds.
3. What is the purpose of soda lime and cupric oxide ?
i. Why is the boiling point of the aldehyde greater than that of the alkane? ii. Why is the boiling point of alcohol the highest? iii. Explain why the solubility of aldehydes and alcohols falls as the molecules get bigger.
26. What type of bond promotes the solubility of alcohols in water?
A. Hydrogen bonds
B. Dipole-dipole bonds
C. Covalent bonds
D. Van der Waals forces
27. The dehydration of ethyl alcohol primarily yields
A. Ethylene
B. Ethanal
C. Ethanoic acid
D. Ethane
28. In general, the boiling point of primary alcohol is
the boiling point of a linear ether of the same carbon
chain length.
A. Greater than
B. Lower than
C. Equal to
D. Stronger than
29. Ethyl alcohol and dimethyl ether are isomers. However, they differ in their dipole moment. Which statement is TRUE?
A. Dimethyl ether has a lower dipole moment than ethyl alcohol.
B. Ethyl alcohol has a lower dipole moment than dimethyl ether.
C. Dimethyl ether has a greater bond dipole than ethyl alcohol.
D. Ethyl alcohol has a greater bond dipole than dimethyl ether.
30. Based on molecular structure, alcohol molecules and ether molecules are analogues of water. This implies that both.
molecules can form hydrogen bonds with water molecules. Which…
Chapter 3 Solutions
Experimental Organic Chemistry: A Miniscale & Microscale Approach (Cengage Learning Laboratory Series for Organic Chemistry)
Ch. 3.2 - Prob. 1ECh. 3.2 - Prob. 2ECh. 3.2 - Prob. 3ECh. 3.2 - Prob. 4ECh. 3.2 - Prob. 5ECh. 3.2 - Prob. 6ECh. 3.2 - Prob. 7ECh. 3.2 - Prob. 8ECh. 3.2 - Prob. 9ECh. 3.2 - Prob. 10E
Ch. 3.2 - Prob. 11ECh. 3.2 - Prob. 12ECh. 3.2 - Prob. 13ECh. 3.2 - Prob. 14ECh. 3.2 - Prob. 15ECh. 3.2 - Prob. 16ECh. 3.2 - Prob. 17ECh. 3.2 - Prob. 18ECh. 3.2 - Prob. 19ECh. 3.2 - Prob. 20ECh. 3.2 - Prob. 21ECh. 3.2 - Prob. 22ECh. 3.2 - Prob. 23ECh. 3.2 - Prob. 24ECh. 3.2 - Prob. 25ECh. 3.2 - Prob. 26ECh. 3.2 - Prob. 27ECh. 3.2 - Prob. 28ECh. 3.2 - Prob. 29ECh. 3.2 - Prob. 30ECh. 3.2 - Prob. 31ECh. 3.2 - Prob. 32ECh. 3.2 - Prob. 34ECh. 3.3 - Prob. 1ECh. 3.3 - Prob. 2ECh. 3.3 - Prob. 3ECh. 3.3 - Prob. 4ECh. 3.3 - Prob. 5ECh. 3.3 - Prob. 6ECh. 3.3 - Prob. 7ECh. 3.3 - Prob. 8ECh. 3.3 - Prob. 10ECh. 3.3 - Prob. 11ECh. 3.3 - Prob. 12ECh. 3.3 - Prob. 13ECh. 3.3 - Prob. 14ECh. 3.3 - Prob. 15ECh. 3.3 - Prob. 16ECh. 3.3 - Prob. 17ECh. 3.3 - Prob. 18ECh. 3.3 - Prob. 19ECh. 3.3 - Prob. 21ECh. 3.3 - Prob. 22ECh. 3.3 - Prob. 23ECh. 3.3 - Prob. 24ECh. 3.3 - Prob. 25ECh. 3.3 - Prob. 26E
Knowledge Booster
Similar questions
- 1. The boiling points of liquids are determined by the intermolecular forces that must be energetically overcome for that liquid to convert from a liquid to a gas. Consider the solvents ethanol and dichloromethane. A. Draw the interaction between ethanol- ethanol molecules and dichloromethane- dichloromethane molecules.arrow_forwardThe melting point range of a pure organic compound should always be O a. large O b. 100 degrees Celcius O c. o degrees Celcius O d. smallarrow_forwardNormal boiling point of ethanol (C2H5OH) is 78 °C, and of propanol (C3H7OH) is 97 °C. a. Explain the reason for the difference in boiling points of these two alcohols. b. When the underline methyl group in propanol, CH3CH2CH2OH, is replaced with a hydroxyl group (HOCH2CH2OH), boiling point of the molecule increases to 197 °C. Explain the reason for observed increase in the boiling point.arrow_forward
- 1.What is the importance of heat of combustion in the laboratory? 2.What is the purpose of heat of combustion? 3.How does heat of combustion connected to a liquid alcohols?arrow_forwardA sample consists of butyric acid, acetic acid and ethylene glycol. At a distilling temperature of 162°C, the distillate will significantly consist of: I. Butyric acid (boiling point: 162°C)II. Acetic acid (boiling point: 118°C)III. Ethylene glycol (boiling point: 197°C)A. I and II only B. I onlyC. I,II, and IIID. III onlyarrow_forward1. Substance X dissolves in Substance Y. Which of the following statements is true? a.Substances X and Y do not have a significantly large difference of polarities. b.Substance X has many hydroxyl substituents that can hydrogen bond with the n-alkane Substance X. c.Substance Y is non-polar and is able to dissolve the polar Substance X. d.Substance Y is polar and is capable of dipole-dipole interaction with the nonpolar Substance X. 2. Substances A,B,C,D, and E are mixed together. Substances B and E form into a separate immiscible layer above the solution. Which of the following statements is true? a.B and E are non-polar. They can hydrogen bonds with each other in order to separate from the polar A,C, and D b.B and E have similar polarities with A, C, and D. c.B and E are non-polar. A,C and D are polar. d.B and A are polar. It follows the like dissolves like rule.arrow_forward
- 2. Why is it important to know the properties of common organic liquid materials? To know A. the uses of the liquids B. how these liquids affect people C. possible dangers from these kinds of materials D. all of the above 3. Why are carbon atoms able to form many organic compounds? Carbon atoms A. attract electrons from other atoms. B. have strong attraction to other elements C. can form many types of bonds with other carbon D. none of the above 4. Which alkene will most likely have the highest boiling point? B. hexene A. ethene C. pentene D. propene 5. Which are TRUE about organic compounds? They A. contain calcium B. contain carbon C. can be produced artificially D. can be produced by living organismsarrow_forwardCHOOSE THE LETTER OF THE CORRECT ANSWER. (note: the picture with box is for number 2 while the other picture is for number 1) 1. Based on the illustration, what is the classification of the given structure? a. Alcohol b. Ether c. Aldehyde d. Ketone e. Carboxylic Acid 2. What is the main functional group of the organic molecule?* Reaction mechanisms of organic molecules (alcohol to carboxylic acid) a. Carboxyl functional group b. Alcohol functional group c. Carbonyl functional group d. Aldehyde functional grouparrow_forward1. Explain the term, selective solubility.2. Name five solvents available to the organic chemists for use in the purification of organic compounds.3. Explain the term sublimation.arrow_forward
- Consider an organic molecule with the molecular formula C13H10O. a. Propose a chemically correct structure for this molecule that contains a ketone. b. Propose a chemically correct structure for this molecule that contains a functional group other than a ketonearrow_forward24 Which of the following contains a hydroxyl group? A. Alcohol B. Ether C. Thiol D. More than one answer is correct 25 Tetrahydrocannabinol molecule has four functional groups. Which one is not included? A. An alkane B. an ether C. a phenolic -OH D. benzene ring E. a carbon-carbon double bond H H3C CH3 H3C H OH CH3arrow_forwardUse intermolecular forces to account for each of these differences: a. CH;OH boils at 65°C while CH;SH boils at 6°C. b. Xe is a liquid at 120 K while Ar is a gas. c. Acetone boils at 56°C while 2-methylpropane boils at -12°C. See structures below. CH3 CH3-C-CH3 CH3-CH-CH3 Acetone 2-Methylpropanearrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
ChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill Education
Principles of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill Education
Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning
Elementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY
Chemistry
Chemistry
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
Chemistry
Chemistry
ISBN:9781259911156
Author:Raymond Chang Dr., Jason Overby Professor
Publisher:McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Cengage Learning
Organic Chemistry
Chemistry
ISBN:9780078021558
Author:Janice Gorzynski Smith Dr.
Publisher:McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:Cengage Learning
Elementary Principles of Chemical Processes, Bind...
Chemistry
ISBN:9781118431221
Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:WILEY