Which of the following molecules is the MOST water soluble? H2N. HO, H. Но C

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
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**Question 6**

Which of the following molecules is the **most** water soluble?

Here are the molecular structures presented as options:

- **Option A:** A cyclic organic compound with two carbonyl groups.
- **Option B:** An amino acid structure with an amine group (NH₂), a carboxylic acid group (C(=O)OH), and an additional hydroxyl group (OH).
- **Option C:** A structure with an aromatic benzene ring attached to a short chain with an aldehyde group (C(=O)H).
- **Option D:** A simple linear alkene chain with no additional functional groups, consisting of four carbon atoms and one double bond.

Choose one:

- ○ A
- ○ B
- ○ C
- ○ D

Explanation of structures and solubility:
Water solubility in organic molecules is generally higher when there are more polar functional groups, such as hydroxyl (OH) and amine (NH₂) groups, which can form hydrogen bonds with water. Option B, which contains both an amine group and two hydroxyl groups, is likely to be the most water soluble due to its polarity and ability to hydrogen bond.
Transcribed Image Text:**Question 6** Which of the following molecules is the **most** water soluble? Here are the molecular structures presented as options: - **Option A:** A cyclic organic compound with two carbonyl groups. - **Option B:** An amino acid structure with an amine group (NH₂), a carboxylic acid group (C(=O)OH), and an additional hydroxyl group (OH). - **Option C:** A structure with an aromatic benzene ring attached to a short chain with an aldehyde group (C(=O)H). - **Option D:** A simple linear alkene chain with no additional functional groups, consisting of four carbon atoms and one double bond. Choose one: - ○ A - ○ B - ○ C - ○ D Explanation of structures and solubility: Water solubility in organic molecules is generally higher when there are more polar functional groups, such as hydroxyl (OH) and amine (NH₂) groups, which can form hydrogen bonds with water. Option B, which contains both an amine group and two hydroxyl groups, is likely to be the most water soluble due to its polarity and ability to hydrogen bond.
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