(a) Interpretation: The equation for the reaction of Lipase-catalyzed hydrolysis of oil is to be stated. Concept introduction: The hydrolysis of the triglycerides in the fat cells results in the formation of fatty acids and glycerol. Lipase-catalyzed hydrolysis involves the hydrolysis of the fats and oils in the presence of lipase catalyst to form glycerol and fatty acids.

Question

Using a cell of known pathlength b = 1.25115 x 10-3 cm, a water absorption spectrum was measured. The band at 1645 cm-1, assigned to the O-H bending, showed an absorbance, A, of 1.40. a) Assuming that water density is 1.00 g/mL, calculate the water molar concentration c (hint: M= mole/L) b) Calculate the molar absorptivity, a, of the 1645 cm-1 band c) The transmitted light, I, can be written as I= Ioexp(-xb), where x is the absorption coefficient (sometimes designated as alpha), Io is the input light, and b is the cell pathlength. Prove that x= (ln10)*x*c d) Calculate x for the 1645 cm-1 band

Answer 1

Question

Chapter 18, Problem 18.19E

Interpretation Introduction

(a)

Interpretation:

The equation for the reaction of Lipase-catalyzed hydrolysis of oil is to be stated.

Concept introduction:

The hydrolysis of the triglycerides in the fat cells results in the formation of fatty acids and glycerol. Lipase-catalyzed hydrolysis involves the hydrolysis of the fats and oils in the presence of lipase catalyst to form glycerol and fatty acids.

Interpretation Introduction

(b)

Interpretation:

The equation for the reaction of saponification of oil is to be stated.

Concept introduction:

The reaction of an ester with a strong base is called saponification reaction. In saponification reaction, the ester bond breaks and results into two products: the salt of carboxylic acid and an alcohol.

Interpretation Introduction

(c)

Interpretation:

The equation for the reaction of hydrogenation of oil is to be stated.

Concept introduction:

The addition of H2 in the presence of catalyst is known as catalytic hydrogenation reaction. This is a syn addition. Hydrogenation reaction is exothermic in nature due to the fact that the bonds are stronger in product than in the reactant.

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Using a cell of known pathlength b = 1.25115 x 10-3 cm, a water absorption spectrum was measured. The band at 1645 cm-1, assigned to the O-H bending, showed an absorbance, A, of 1.40. a) Assuming that water density is 1.00 g/mL, calculate the water molar concentration c (hint: M= mole/L) b) Calculate the molar absorptivity, a, of the 1645 cm-1 band c) The transmitted light, I, can be written as I= Ioexp(-xb), where x is the absorption coefficient (sometimes designated as alpha), Io is the input light, and b is the cell pathlength. Prove that x= (ln10)*x*c d) Calculate x for the 1645 cm-1 band

Convert 1.38 eV into wavelength (nm) and wavenumber (cm-1) (c = 2.998 x 108 m/s; h = 6.626 x 10-34 J*s).

Can you help me understand the CBC method on metal bridging by looking at this problem?

Answer 2

Question

Chapter 18, Problem 18.19E

Interpretation Introduction

(a)

Interpretation:

The equation for the reaction of Lipase-catalyzed hydrolysis of oil is to be stated.

Concept introduction:

The hydrolysis of the triglycerides in the fat cells results in the formation of fatty acids and glycerol. Lipase-catalyzed hydrolysis involves the hydrolysis of the fats and oils in the presence of lipase catalyst to form glycerol and fatty acids.

Interpretation Introduction

(b)

Interpretation:

The equation for the reaction of saponification of oil is to be stated.

Concept introduction:

The reaction of an ester with a strong base is called saponification reaction. In saponification reaction, the ester bond breaks and results into two products: the salt of carboxylic acid and an alcohol.

Interpretation Introduction

(c)

Interpretation:

The equation for the reaction of hydrogenation of oil is to be stated.

Concept introduction:

The addition of H2 in the presence of catalyst is known as catalytic hydrogenation reaction. This is a syn addition. Hydrogenation reaction is exothermic in nature due to the fact that the bonds are stronger in product than in the reactant.

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Answer 3

Question

Chapter 18, Problem 18.19E

Interpretation Introduction

(a)

Interpretation:

The equation for the reaction of Lipase-catalyzed hydrolysis of oil is to be stated.

Concept introduction:

The hydrolysis of the triglycerides in the fat cells results in the formation of fatty acids and glycerol. Lipase-catalyzed hydrolysis involves the hydrolysis of the fats and oils in the presence of lipase catalyst to form glycerol and fatty acids.

Interpretation Introduction

(b)

Interpretation:

The equation for the reaction of saponification of oil is to be stated.

Concept introduction:

The reaction of an ester with a strong base is called saponification reaction. In saponification reaction, the ester bond breaks and results into two products: the salt of carboxylic acid and an alcohol.

Interpretation Introduction

(c)

Interpretation:

The equation for the reaction of hydrogenation of oil is to be stated.

Concept introduction:

The addition of H2 in the presence of catalyst is known as catalytic hydrogenation reaction. This is a syn addition. Hydrogenation reaction is exothermic in nature due to the fact that the bonds are stronger in product than in the reactant.

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Answer 4

Question

Chapter 18, Problem 18.19E

Interpretation Introduction

(a)

Interpretation:

The equation for the reaction of Lipase-catalyzed hydrolysis of oil is to be stated.

Concept introduction:

The hydrolysis of the triglycerides in the fat cells results in the formation of fatty acids and glycerol. Lipase-catalyzed hydrolysis involves the hydrolysis of the fats and oils in the presence of lipase catalyst to form glycerol and fatty acids.

Interpretation Introduction

(b)

Interpretation:

The equation for the reaction of saponification of oil is to be stated.

Concept introduction:

The reaction of an ester with a strong base is called saponification reaction. In saponification reaction, the ester bond breaks and results into two products: the salt of carboxylic acid and an alcohol.

Interpretation Introduction

(c)

Interpretation:

The equation for the reaction of hydrogenation of oil is to be stated.

Concept introduction:

The addition of H2 in the presence of catalyst is known as catalytic hydrogenation reaction. This is a syn addition. Hydrogenation reaction is exothermic in nature due to the fact that the bonds are stronger in product than in the reactant.

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Answer 5

Chapter 18, Problem 18.19E

Interpretation Introduction

(a)

Interpretation:

The equation for the reaction of Lipase-catalyzed hydrolysis of oil is to be stated.

Concept introduction:

The hydrolysis of the triglycerides in the fat cells results in the formation of fatty acids and glycerol. Lipase-catalyzed hydrolysis involves the hydrolysis of the fats and oils in the presence of lipase catalyst to form glycerol and fatty acids.

Interpretation Introduction

(b)

Interpretation:

The equation for the reaction of saponification of oil is to be stated.

Concept introduction:

The reaction of an ester with a strong base is called saponification reaction. In saponification reaction, the ester bond breaks and results into two products: the salt of carboxylic acid and an alcohol.

Interpretation Introduction

(c)

Interpretation:

The equation for the reaction of hydrogenation of oil is to be stated.

Concept introduction:

The addition of H2 in the presence of catalyst is known as catalytic hydrogenation reaction. This is a syn addition. Hydrogenation reaction is exothermic in nature due to the fact that the bonds are stronger in product than in the reactant.

Answer 6

Chapter 18, Problem 18.19E

Interpretation Introduction

(a)

Interpretation:

The equation for the reaction of Lipase-catalyzed hydrolysis of oil is to be stated.

Concept introduction:

The hydrolysis of the triglycerides in the fat cells results in the formation of fatty acids and glycerol. Lipase-catalyzed hydrolysis involves the hydrolysis of the fats and oils in the presence of lipase catalyst to form glycerol and fatty acids.

Answer 7

Chapter 18, Problem 18.19E

Interpretation Introduction

(a)

Interpretation:

The equation for the reaction of Lipase-catalyzed hydrolysis of oil is to be stated.

Concept introduction:

The hydrolysis of the triglycerides in the fat cells results in the formation of fatty acids and glycerol. Lipase-catalyzed hydrolysis involves the hydrolysis of the fats and oils in the presence of lipase catalyst to form glycerol and fatty acids.

Answer 8

Interpretation Introduction

(b)

Interpretation:

The equation for the reaction of saponification of oil is to be stated.

Concept introduction:

The reaction of an ester with a strong base is called saponification reaction. In saponification reaction, the ester bond breaks and results into two products: the salt of carboxylic acid and an alcohol.

Answer 9

Interpretation Introduction

(b)

Interpretation:

The equation for the reaction of saponification of oil is to be stated.

Concept introduction:

The reaction of an ester with a strong base is called saponification reaction. In saponification reaction, the ester bond breaks and results into two products: the salt of carboxylic acid and an alcohol.

Answer 10

Interpretation Introduction

(c)

Interpretation:

The equation for the reaction of hydrogenation of oil is to be stated.

Concept introduction:

The addition of H2 in the presence of catalyst is known as catalytic hydrogenation reaction. This is a syn addition. Hydrogenation reaction is exothermic in nature due to the fact that the bonds are stronger in product than in the reactant.

Answer 11

Interpretation Introduction

(c)

Interpretation:

The equation for the reaction of hydrogenation of oil is to be stated.

Concept introduction:

The addition of H2 in the presence of catalyst is known as catalytic hydrogenation reaction. This is a syn addition. Hydrogenation reaction is exothermic in nature due to the fact that the bonds are stronger in product than in the reactant.

Answer 12

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Answer 23

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Solution Summary: The author explains the equation for the reaction of Lipase-catalyzed hydrolysis of oil.

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