Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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need help on part 2

Transcribed Image Text:**Predict the organic product of the following reaction.**
In the given reaction, a secondary alcohol reacts with phosphorus tribromide (PBr₃).
**Reactant:**
- The reactant is a structural formula of a secondary alcohol. It has a hydroxyl group (OH) attached to the second carbon of a straight-chain alkane with four carbon atoms.
**Reagent:**
- PBr₃ (Phosphorus tribromide) is indicated as the reagent used to facilitate the reaction.
**Product:**
- The expected product, shown in a box, is a structural formula of an alkyl bromide. The bromine (Br) replaces the hydroxyl group, showing a typical reaction of alcohol with phosphorus tribromide leading to halide formation.
- The by-product of this reaction is indicated as HOPBr₂.
A button labeled "view structure" suggests that viewers can click to see a more detailed representation of the product structure.

Transcribed Image Text:**Part 2 out of 3**
**Draw a stepwise mechanism for its formation.**
The image shows a chemical reaction involving three main components: a reactant, an empty space for a product, and multiple-choice options for identifying a by-product.
1. **Reactant Structure**:
- The first box contains an incomplete molecular structure that includes an oxygen atom with a hydrogen (likely representing a hydroxyl group) attached through a dashed line, indicating a transition state or a focus for reaction. There is also a chain with a phosphorus atom bonded to two bromine atoms. An interactive button labeled "finish structure ..." suggests that this part of the task involves completing or altering this molecular structure.
2. **Reaction Arrow**:
- The diagram includes an arrow pointing from the reactant to the product, signifying the direction of the reaction.
3. **Product Structure**:
- The second box is labeled "draw structure ..." and is designated for illustrating the chemical structure of the product formed from the reaction.
4. **By-Product Options**:
- To the right, there is a multiple-choice question asking to identify the by-product of the reaction. The options given are:
- HOBr
- HBr
- Br⁻ (selected option)
- HO⁻
- PBr₂
The correct answer is indicated by a checkmark next to "Br⁻," suggesting that this is the expected by-product in the mechanism.
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