Chemistry
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Drawing sugars to and from fischer projections

**Activity: Drawing Sugars in Open-Chain Form**

**Instructions:**

You are required to draw the sugar molecule depicted in its open-chain form. Refer to the structure provided at the top of this page.

**Guidelines:**

- Utilize the wedge/hash bond tools to clearly indicate stereochemistry where applicable.
- Ensure that the open-chain form is not represented as a Fischer projection.

**Diagram Area:**

In the space below, use the ChemDoodle tool to draft your open-chain sugar structure. 

Controls include options for:

- Adding bonds and atoms
- Customizing molecular structures
- Adjusting stereochemistry  

Use these tools to accurately replicate the molecular configuration, focusing on the correct linear form of the sugar rather than a cyclic form. 

Once done, save and submit your drawing for review.

**Support:**

- For additional help, click the green question mark in the ChemDoodle interface.
- You may also contact your instructor via email using the provided button.

After completion, navigate through the activity using the Previous and Next buttons as needed.
expand button
Transcribed Image Text:**Activity: Drawing Sugars in Open-Chain Form** **Instructions:** You are required to draw the sugar molecule depicted in its open-chain form. Refer to the structure provided at the top of this page. **Guidelines:** - Utilize the wedge/hash bond tools to clearly indicate stereochemistry where applicable. - Ensure that the open-chain form is not represented as a Fischer projection. **Diagram Area:** In the space below, use the ChemDoodle tool to draft your open-chain sugar structure. Controls include options for: - Adding bonds and atoms - Customizing molecular structures - Adjusting stereochemistry Use these tools to accurately replicate the molecular configuration, focusing on the correct linear form of the sugar rather than a cyclic form. Once done, save and submit your drawing for review. **Support:** - For additional help, click the green question mark in the ChemDoodle interface. - You may also contact your instructor via email using the provided button. After completion, navigate through the activity using the Previous and Next buttons as needed.
**Task: Draw the Sugar in its Cyclic Beta-Hemiacetal Form**

1. **Structure Shown**: 
   - **Molecular Structure**: Open-chain form of a sugar with hydroxyl groups.
   - **Chemical Groups**:
     - Two terminal CH₂OH groups.
     - Carbonyl group (C=O).
     - Hydroxyl groups (OH) attached to intermediate carbons.
   
2. **Instructions**:
   - Use wedge/hash bonds to show stereochemistry if applicable.
   - Omit explicit hydrogen (H) atoms from drawing unless necessary.
   - Do not use wedges or hashed bonds on achiral groups.
   - Exclude lone pairs; they are not required for grading.
   - Utilize a "flat" representation of any rings drawn.

3. **Tools Available**:
   - Drawing tools include line, ring, and bond-type selectors to accurately depict molecular structure.
   
4. **Interface Features**:
   - Includes basic draw, select, and eraser tools.
   - Copy, paste, and zoom options for easy manipulation.
   - “Save and Exit” for progress preservation.

**Objective**: Use available tools to illustrate the specified sugar in its beta-hemiacetal form, adhering to given conventions for chemical drawings.
expand button
Transcribed Image Text:**Task: Draw the Sugar in its Cyclic Beta-Hemiacetal Form** 1. **Structure Shown**: - **Molecular Structure**: Open-chain form of a sugar with hydroxyl groups. - **Chemical Groups**: - Two terminal CH₂OH groups. - Carbonyl group (C=O). - Hydroxyl groups (OH) attached to intermediate carbons. 2. **Instructions**: - Use wedge/hash bonds to show stereochemistry if applicable. - Omit explicit hydrogen (H) atoms from drawing unless necessary. - Do not use wedges or hashed bonds on achiral groups. - Exclude lone pairs; they are not required for grading. - Utilize a "flat" representation of any rings drawn. 3. **Tools Available**: - Drawing tools include line, ring, and bond-type selectors to accurately depict molecular structure. 4. **Interface Features**: - Includes basic draw, select, and eraser tools. - Copy, paste, and zoom options for easy manipulation. - “Save and Exit” for progress preservation. **Objective**: Use available tools to illustrate the specified sugar in its beta-hemiacetal form, adhering to given conventions for chemical drawings.
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