Experimental Organic Chemistry: A Miniscale & Microscale Approach (Cengage Learning Laboratory Series for Organic Chemistry)
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
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Chapter 4.4, Problem 2E

a)

Interpretation Introduction

Interpretation: Whether simple or fractional distillation is more suitable to prepare drinking water from sea water should be determined.

Concept introduction: Simple distillation is separation technique that is used to separate mixture of organic compounds with difference in their boiling points more than 40 °C . In other words, this procedure is applied for removal of nonvolatile impurities from volatile solvents. If one of the compounds in organic mixture is volatile, its vapors will form first and are converted into liquid with help of condenser. This way all of volatile compound gets converted into liquid and therefore it is separated from nonvolatile component.

Fractional distillation is separation technique that separates various fractions of components in mixture. This process is based on vaporization of one or more fractions or parts of mixture. It is used to separate components of mixture that have difference in boiling points less than 25 °C .

b)

Interpretation Introduction

Interpretation: Whether simple or fractional distillation is more suitable to separatebenzene from toluene should be determined.

Concept introduction: Simple distillation is separation technique that is used to separate mixture of organic compounds with difference in their boiling points more than 40 °C . In other words, this procedure is applied for removal of nonvolatile impurities from volatile solvents. If one of the compounds in organic mixture is volatile, its vapors will form first and are converted into liquid with help of condenser. This way all of volatile compound gets converted into liquid and therefore it is separated from nonvolatile component.

Fractional distillation is separation technique that separates various fractions of components in mixture. This process is based on vaporization of one or more fractions or parts of mixture. It is used to separate components of mixture that have difference in boiling points less than 25 °C .

c)

Interpretation Introduction

Interpretation: Whether simple or fractional distillation is more suitable to obtain gasoline from crude oil should be determined.

Concept introduction: Simple distillation is separation technique that is used to separate mixture of organic compounds with difference in their boiling points more than 40 °C . In other words, this procedure is applied for removal of nonvolatile impurities from volatile solvents. If one of the compounds in organic mixture is volatile, its vapors will form first and are converted into liquid with help of condenser. This way all of volatile compound gets converted into liquid and therefore it is separated from nonvolatile component.

Fractional distillation is separation technique that separates various fractions of components in mixture. This process is based on vaporization of one or more fractions or parts of mixture. It is used to separate components of mixture that have difference in boiling points less than 25 °C .

d)

Interpretation Introduction

Interpretation: Whether simple or fractional distillation is more suitable to remove diethyl ether from p-dichlorobenzene should be determined.

Concept introduction: Simple distillation is separation technique that is used to separate mixture of organic compounds with difference in their boiling points more than 40 °C . In other words, this procedure is applied for removal of nonvolatile impurities from volatile solvents. If one of the compounds in organic mixture is volatile, its vapors will form first and are converted into liquid with help of condenser. This way all of volatile compound gets converted into liquid and therefore it is separated from nonvolatile component.

Fractional distillation is separation technique that separates various fractions of components in mixture. This process is based on vaporization of one or more fractions or parts of mixture. It is used to separate components of mixture that have difference in boiling points less than 25 °C .

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Transmitance 3. Which one of the following compounds corresponds to this IR spectrum? Point out the absorption band(s) that helped you decide. OH H3C OH H₂C CH3 H3C CH3 H3C INFRARED SPECTRUM 0.8- 0.6 0.4- 0.2 3000 2000 1000 Wavenumber (cm-1) 4. Consider this compound: H3C On the structure above, label the different types of H's as A, B, C, etc. In table form, list the labeled signals, and for each one state the number of hydrogens, their shifts, and the splitting you would observe for these hydrogens in the ¹H NMR spectrum. Label # of hydrogens splitting Shift (2)
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