The reason as to why the addition of HBr to alkenes A and C forms the addition products B and D is to be stated. Concept introduction: According to Markovinokov’s rule, the positive part of halogen acid attached to that carbon atom in C=C bond which carries maximum number of hydrogen atoms and the negative part of halogen acid will attach to that carbon atom in C=C bond which has minimum number of hydrogen atoms. The steps followed by electrophilic addition reaction are stated below: • First protonation of the alkene take place to generate the carbocation. • The halide ion will attack on the carbocation to give the final product.

Question

When 15.00 mL of 3.00 M NaOH was mixed in a calorimeter with 12.80 mL of 3.00 M HCl, both initially at room temperature (22.00 C), the temperature increased to 29.30 C. The resultant salt solution had a mass of 27.80 g and a specific heat capacity of 3.74 J/Kg. What is heat capacity of the calorimeter (in J/C)? Note: The molar enthalpy of neutralization per mole of HCl is -55.84 kJ/mol.

Answer 1

Question

Chapter 10, Problem 61P

Interpretation Introduction

Interpretation: The reason as to why the addition of HBr to alkenes A and C forms the addition products B and D is to be stated.

Concept introduction: According to Markovinokov’s rule, the positive part of halogen acid attached to that carbon atom in C=C bond which carries maximum number of hydrogen atoms and the negative part of halogen acid will attach to that carbon atom in C=C bond which has minimum number of hydrogen atoms.

The steps followed by electrophilic addition reaction are stated below:

• First protonation of the alkene take place to generate the carbocation.

• The halide ion will attack on the carbocation to give the final product.

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When 15.00 mL of 3.00 M NaOH was mixed in a calorimeter with 12.80 mL of 3.00 M HCl, both initially at room temperature (22.00 C), the temperature increased to 29.30 C. The resultant salt solution had a mass of 27.80 g and a specific heat capacity of 3.74 J/Kg. What is heat capacity of the calorimeter (in J/C)? Note: The molar enthalpy of neutralization per mole of HCl is -55.84 kJ/mol.

When 15.00 mL of 3.00 M NaOH was mixed in a calorimeter with 12.80 mL of 3.00 M HCl, both initially at room temperature (22.00 C), the temperature increased to 29.30 C. The resultant salt solution had a mass of 27.80 g and a specific heat capacity of 3.74 J/Kg. What is heat capacity of the calorimeter (in J/C)? Note: The molar enthalpy of neutralization per mole of HCl is -55.84 kJ/mol. Which experimental number must be initialled by the Lab TA for the first run of Part 1 of the experiment? a) the heat capacity of the calorimeter b) Mass of sample c) Ti d) The molarity of the HCl e) Tf

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