The sign of change in enthalpy for the vaporization of liquid B r 2 is to be determined. The reaction showing heat as either reactant or product is to be written. Concept Introduction: Enthalpy ( H ) : It is the total amount of heat in a particular system. The value of heat formed in a reaction ΔH is calculated by the formula, ΔH= ∑ ( B o n d D i s s o c i a t i o n E n e r g y ) ( reactants ) − ∑ ( B o n d D i s s o c i a t i o n E n e r g y ) ( products ) If the value obtained for ΔH in a reaction is positive then it is an endothermic reaction whereas the value obtained for ΔH is negative it is an exothermic reaction.

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Answer 1

Question

Chapter 7, Problem 7.25AP

(a)

Interpretation Introduction

Interpretation:

The sign of change in enthalpy for the vaporization of liquid Br2 is to be determined. The reaction showing heat as either reactant or product is to be written.

Concept Introduction:

Enthalpy (H): It is the total amount of heat in a particular system.

The value of heat formed in a reaction ΔH is calculated by the formula,

ΔH=∑(Bond Dissociation Energy)(reactants) −∑(Bond Dissociation Energy)(products)

If the value obtained for ΔH in a reaction is positive then it is an endothermic reaction whereas the value obtained for ΔH is negative it is an exothermic reaction.

(b)

Interpretation Introduction

Interpretation:

The energy required for the vaporization of 5.8 mol mole of Br2 is to be determined.

Concept Introduction:

Enthalpy H: it is the total amount of heat in a particular system.

The value of heat formed in a reaction ΔH is calculated by the formula,

ΔH=∑(Bond Dissociation Energy)(reactants) −∑(Bond Dissociation Energy)(products)

If the value obtained for ΔH in a reaction is positive then it is an endothermic reaction whereas the value obtained for ΔH is negative it is an exothermic reaction.

(c)

Interpretation Introduction

Interpretation:

The energy for the evaporation of 82.0 g of Br2 is is to be determined.

Concept Introduction:

Enthalpy H: it is the total amount of heat in a particular system.

The value of heat formed in a reaction ΔH is calculated by the formula,

ΔH=∑(Bond Dissociation Energy)(reactants) −∑(Bond Dissociation Energy)(products)

Conversion of kcal to joules is 1 kcal = 4184 J

From its given mass is,

Number of moles = Given massMolecular mass

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The beta-lactamase hydrolyzes the lactam-ring in penicillin. Describe the mechanism of hydrolysis, insuring to include the involvement of S, D, & K in the reaction sequence. Please help

To map the active site of beta-lactamase, the enzyme was hydrolyzed with trypsin to yield a hexapeptide (P1) with the following amino acids. Glu, Lys, Leu, Phe, Met, and Ser. Treatment of P1 with phenyl isothiocyanate yielded a PTH derivative of phenylalanine and a peptide (P2). Treatment of P1 with cyanogenbromide gave an acidic tetrapeptide (P3) and a dipeptide (P4).Treatment of P2 with 1-fluoro-2,4-dinitrobenzene, followed by complete hydrolysis, yields N-2,4-dinitrophenyl-Glu. P1, P2, and P3 contain the active site serine. Why doesn't D in this hexapeptide not participate in the hydrolysis of the beta-lactam ring even though S, K, and D are involved in the catalyst?

To map the active site of -lactamase, the enzyme was hydrolyzed with trypsin to yield a hexapeptide (P1) with the following amino acids. Glu, Lys, Leu, Phe, Met, and Ser. Treatment of P1 with phenyl isothiocyanate yielded a PTH derivative of phenylalanine and a peptide (P2). Treatment of P1 with cyanogenbromide gave an acidic tetrapeptide (P3) and a dipeptide (P4).Treatment of P2 with 1-fluoro-2,4-dinitrobenzene, followed by complete hydrolysis, yields N-2,4-dinitrophenyl-Glu. P1, P2, and P3 contain the active site serine. Using the experimental results described above derive the primary sequence of the active site hexapeptide. Please help!

Answer 2

Question

Chapter 7, Problem 7.25AP

(a)

Interpretation Introduction

Interpretation:

The sign of change in enthalpy for the vaporization of liquid Br2 is to be determined. The reaction showing heat as either reactant or product is to be written.

Concept Introduction:

Enthalpy (H): It is the total amount of heat in a particular system.

The value of heat formed in a reaction ΔH is calculated by the formula,

ΔH=∑(Bond Dissociation Energy)(reactants) −∑(Bond Dissociation Energy)(products)

If the value obtained for ΔH in a reaction is positive then it is an endothermic reaction whereas the value obtained for ΔH is negative it is an exothermic reaction.

(b)

Interpretation Introduction

Interpretation:

The energy required for the vaporization of 5.8 mol mole of Br2 is to be determined.

Concept Introduction:

Enthalpy H: it is the total amount of heat in a particular system.

The value of heat formed in a reaction ΔH is calculated by the formula,

ΔH=∑(Bond Dissociation Energy)(reactants) −∑(Bond Dissociation Energy)(products)

If the value obtained for ΔH in a reaction is positive then it is an endothermic reaction whereas the value obtained for ΔH is negative it is an exothermic reaction.

(c)

Interpretation Introduction

Interpretation:

The energy for the evaporation of 82.0 g of Br2 is is to be determined.

Concept Introduction:

Enthalpy H: it is the total amount of heat in a particular system.

The value of heat formed in a reaction ΔH is calculated by the formula,

ΔH=∑(Bond Dissociation Energy)(reactants) −∑(Bond Dissociation Energy)(products)

Conversion of kcal to joules is 1 kcal = 4184 J

From its given mass is,

Number of moles = Given massMolecular mass

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Answer 3

Question

Chapter 7, Problem 7.25AP

(a)

Interpretation Introduction

Interpretation:

The sign of change in enthalpy for the vaporization of liquid Br2 is to be determined. The reaction showing heat as either reactant or product is to be written.

Concept Introduction:

Enthalpy (H): It is the total amount of heat in a particular system.

The value of heat formed in a reaction ΔH is calculated by the formula,

ΔH=∑(Bond Dissociation Energy)(reactants) −∑(Bond Dissociation Energy)(products)

If the value obtained for ΔH in a reaction is positive then it is an endothermic reaction whereas the value obtained for ΔH is negative it is an exothermic reaction.

(b)

Interpretation Introduction

Interpretation:

The energy required for the vaporization of 5.8 mol mole of Br2 is to be determined.

Concept Introduction:

Enthalpy H: it is the total amount of heat in a particular system.

The value of heat formed in a reaction ΔH is calculated by the formula,

ΔH=∑(Bond Dissociation Energy)(reactants) −∑(Bond Dissociation Energy)(products)

If the value obtained for ΔH in a reaction is positive then it is an endothermic reaction whereas the value obtained for ΔH is negative it is an exothermic reaction.

(c)

Interpretation Introduction

Interpretation:

The energy for the evaporation of 82.0 g of Br2 is is to be determined.

Concept Introduction:

Enthalpy H: it is the total amount of heat in a particular system.

The value of heat formed in a reaction ΔH is calculated by the formula,

ΔH=∑(Bond Dissociation Energy)(reactants) −∑(Bond Dissociation Energy)(products)

Conversion of kcal to joules is 1 kcal = 4184 J

From its given mass is,

Number of moles = Given massMolecular mass

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Answer 4

Question

Chapter 7, Problem 7.25AP

(a)

Interpretation Introduction

Interpretation:

The sign of change in enthalpy for the vaporization of liquid Br2 is to be determined. The reaction showing heat as either reactant or product is to be written.

Concept Introduction:

Enthalpy (H): It is the total amount of heat in a particular system.

The value of heat formed in a reaction ΔH is calculated by the formula,

ΔH=∑(Bond Dissociation Energy)(reactants) −∑(Bond Dissociation Energy)(products)

If the value obtained for ΔH in a reaction is positive then it is an endothermic reaction whereas the value obtained for ΔH is negative it is an exothermic reaction.

(b)

Interpretation Introduction

Interpretation:

The energy required for the vaporization of 5.8 mol mole of Br2 is to be determined.

Concept Introduction:

Enthalpy H: it is the total amount of heat in a particular system.

The value of heat formed in a reaction ΔH is calculated by the formula,

ΔH=∑(Bond Dissociation Energy)(reactants) −∑(Bond Dissociation Energy)(products)

If the value obtained for ΔH in a reaction is positive then it is an endothermic reaction whereas the value obtained for ΔH is negative it is an exothermic reaction.

(c)

Interpretation Introduction

Interpretation:

The energy for the evaporation of 82.0 g of Br2 is is to be determined.

Concept Introduction:

Enthalpy H: it is the total amount of heat in a particular system.

The value of heat formed in a reaction ΔH is calculated by the formula,

ΔH=∑(Bond Dissociation Energy)(reactants) −∑(Bond Dissociation Energy)(products)

Conversion of kcal to joules is 1 kcal = 4184 J

From its given mass is,

Number of moles = Given massMolecular mass

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 5

Chapter 7, Problem 7.25AP

(a)

Interpretation Introduction

Interpretation:

The sign of change in enthalpy for the vaporization of liquid Br2 is to be determined. The reaction showing heat as either reactant or product is to be written.

Concept Introduction:

Enthalpy (H): It is the total amount of heat in a particular system.

The value of heat formed in a reaction ΔH is calculated by the formula,

ΔH=∑(Bond Dissociation Energy)(reactants) −∑(Bond Dissociation Energy)(products)

If the value obtained for ΔH in a reaction is positive then it is an endothermic reaction whereas the value obtained for ΔH is negative it is an exothermic reaction.

(b)

Interpretation Introduction

Interpretation:

The energy required for the vaporization of 5.8 mol mole of Br2 is to be determined.

Concept Introduction:

Enthalpy H: it is the total amount of heat in a particular system.

The value of heat formed in a reaction ΔH is calculated by the formula,

ΔH=∑(Bond Dissociation Energy)(reactants) −∑(Bond Dissociation Energy)(products)

If the value obtained for ΔH in a reaction is positive then it is an endothermic reaction whereas the value obtained for ΔH is negative it is an exothermic reaction.

(c)

Interpretation Introduction

Interpretation:

The energy for the evaporation of 82.0 g of Br2 is is to be determined.

Concept Introduction:

Enthalpy H: it is the total amount of heat in a particular system.

The value of heat formed in a reaction ΔH is calculated by the formula,

ΔH=∑(Bond Dissociation Energy)(reactants) −∑(Bond Dissociation Energy)(products)

Conversion of kcal to joules is 1 kcal = 4184 J

From its given mass is,

Number of moles = Given massMolecular mass

Answer 6

Chapter 7, Problem 7.25AP

(a)

Interpretation Introduction

Interpretation:

The sign of change in enthalpy for the vaporization of liquid Br2 is to be determined. The reaction showing heat as either reactant or product is to be written.

Concept Introduction:

Enthalpy (H): It is the total amount of heat in a particular system.

The value of heat formed in a reaction ΔH is calculated by the formula,

ΔH=∑(Bond Dissociation Energy)(reactants) −∑(Bond Dissociation Energy)(products)

If the value obtained for ΔH in a reaction is positive then it is an endothermic reaction whereas the value obtained for ΔH is negative it is an exothermic reaction.

Answer 7

Chapter 7, Problem 7.25AP

(a)

Interpretation Introduction

Interpretation:

The sign of change in enthalpy for the vaporization of liquid Br2 is to be determined. The reaction showing heat as either reactant or product is to be written.

Concept Introduction:

Enthalpy (H): It is the total amount of heat in a particular system.

The value of heat formed in a reaction ΔH is calculated by the formula,

ΔH=∑(Bond Dissociation Energy)(reactants) −∑(Bond Dissociation Energy)(products)

If the value obtained for ΔH in a reaction is positive then it is an endothermic reaction whereas the value obtained for ΔH is negative it is an exothermic reaction.

Answer 8

(b)

Interpretation Introduction

Interpretation:

The energy required for the vaporization of 5.8 mol mole of Br2 is to be determined.

Concept Introduction:

Enthalpy H: it is the total amount of heat in a particular system.

The value of heat formed in a reaction ΔH is calculated by the formula,

ΔH=∑(Bond Dissociation Energy)(reactants) −∑(Bond Dissociation Energy)(products)

If the value obtained for ΔH in a reaction is positive then it is an endothermic reaction whereas the value obtained for ΔH is negative it is an exothermic reaction.

Answer 9

(b)

Interpretation Introduction

Interpretation:

The energy required for the vaporization of 5.8 mol mole of Br2 is to be determined.

Concept Introduction:

Enthalpy H: it is the total amount of heat in a particular system.

The value of heat formed in a reaction ΔH is calculated by the formula,

ΔH=∑(Bond Dissociation Energy)(reactants) −∑(Bond Dissociation Energy)(products)

If the value obtained for ΔH in a reaction is positive then it is an endothermic reaction whereas the value obtained for ΔH is negative it is an exothermic reaction.

Answer 10

(c)

Interpretation Introduction

Interpretation:

The energy for the evaporation of 82.0 g of Br2 is is to be determined.

Concept Introduction:

Enthalpy H: it is the total amount of heat in a particular system.

The value of heat formed in a reaction ΔH is calculated by the formula,

ΔH=∑(Bond Dissociation Energy)(reactants) −∑(Bond Dissociation Energy)(products)

Conversion of kcal to joules is 1 kcal = 4184 J

From its given mass is,

Number of moles = Given massMolecular mass

Answer 11

(c)

Interpretation Introduction

Interpretation:

The energy for the evaporation of 82.0 g of Br2 is is to be determined.

Concept Introduction:

Enthalpy H: it is the total amount of heat in a particular system.

The value of heat formed in a reaction ΔH is calculated by the formula,

ΔH=∑(Bond Dissociation Energy)(reactants) −∑(Bond Dissociation Energy)(products)

Conversion of kcal to joules is 1 kcal = 4184 J

From its given mass is,

Number of moles = Given massMolecular mass

Answer 12

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Answer 13

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Answer 14

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Answer 15

Ch. 7.1 - Classify each of the following as having potential...Ch. 7.2 - Based on bond energies, which atmospheric gas in...Ch. 7.3 - Prob. 7.1CIAP Ch. 7.3 - How many Calories (i.e., kilocalories) are in a...Ch. 7.3 - Prob. 7.3P Ch. 7.3 - Prob. 7.4P Ch. 7.3 - Prob. 7.5P Ch. 7.3 - Prob. 7.6P Ch. 7.4 - Prob. 7.7P Ch. 7.4 - Prob. 7.8KCP

Solution Summary: The author explains the sign of change in enthalpy for the vaporization of liquid Br_2. The reaction showing heat as either reactant or product is to be written.

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