Major product of the given reaction has to be identified. Concept introduction: H B r addition to alkene under radical condition: Non-markonikov addition of H B r to alkenes occur by a radical mechanism in presence of peroxide, in which a B r · reacts with the π bond of the alkene to create a radical intermediate that H · from H − B r to continue the chain process. The regioselectivity of the products is the opposite of the odinary Markonikov addition products that form under polar conditions; hence it is useful alternative to polar addition of H − B r in organic synthesis.

Question

3. Titanium(III) chloride can be used to catalyze the polymerization of ethylene. It is prepared by hydrogen reduction of Titanium(IV) chloride. Reaction of hydrogen gas with titanium(IV) chloride gas produces solid titanium(III) chloride and hydrogen chloride gas. (a) Write a BALANCED chemical reaction for the preparation of titanium(III) chloride (b) A 250 L reaction vessel at 325°C is filled with hydrogen gas to a pressure of 1.3 atm. Titanium(IV) chloride is then added to bring the total pressure to 3.00 atm. How many grams of titanium(III) chloride will be produced after completion of the reaction? (c) What will be the pressure of the resulting hydrogen chloride gas that is also produced?

Answer 1

Question

Chapter 8.8, Problem 8.7P

Interpretation Introduction

Interpretation:

Major product of the given reaction has to be identified.

Concept introduction:

HBr addition to alkene under radical condition:

Non-markonikov addition of HBr to alkenes occur by a radical mechanism in presence of peroxide, in which a Br· reacts with the π bond of the alkene to create a radical intermediate that H· from H−Br to continue the chain process. The regioselectivity of the products is the opposite of the odinary Markonikov addition products that form under polar conditions; hence it is useful alternative to polar addition of H−Br in organic synthesis.

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