The successive half-lives and the initial concentration of a reaction is given. By using these values, the concentration of A is to be calculated for each given time. Concept introduction: The change observed in the concentration of a reactant or a product per unit time is known as the rate of the particular reaction. The differential rate law provides the rate of a reaction at specific reaction concentrations. To determine : The concentration of A at 80 .0 min .

Question

1. Provide a step-by-step mechanism for formation of ALL STEREOISOMERS in the following reaction. Na HCO3 (Sodium bicarbonate, baking soda) is not soluble in CH2Cl2. The powder is a weak base used to neutralize strong acid (pKa < 0) produced by the reaction. Redraw the product to show the configuration(s) that form at C-2 and C-4. Br2 OH CH2Cl2 Na* HCO3 Br HO OH + Na Br +

Answer 1

Question

Chapter 12, Problem 57E

(a)

Interpretation Introduction

Interpretation: The successive half-lives and the initial concentration of a reaction is given. By using these values, the concentration of A is to be calculated for each given time.

Concept introduction: The change observed in the concentration of a reactant or a product per unit time is known as the rate of the particular reaction. The differential rate law provides the rate of a reaction at specific reaction concentrations.

To determine: The concentration of A at 80.0 min .

(b)

Interpretation Introduction

Interpretation: The successive half-lives and the initial concentration of a reaction is given. By using these values, the concentration of A is to be calculated for each given time.

Concept introduction: The change observed in the concentration of a reactant or a product per unit time is known as the rate of the particular reaction. The differential rate law provides the rate of a reaction at specific reaction concentrations.

To determine: The concentration of A at 30.0 min .

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