https://file.aiquickdraw.com/mathbot/file/1726122564316g3sqzj51.jpg

Let's go through each of the questions shown in the image one by one:

### **Question 54: IUPAC Name for the Structure**
The structure shown is a hydrocarbon chain with three hydroxyl (-OH) groups attached. The chain consists of seven carbon atoms, and the hydroxyl groups are attached at positions 1, 4, and 5.

The correct IUPAC name follows these steps:
1. Longest carbon chain: 7 carbons → Heptane.
2. Three hydroxyl groups (triol) are attached at positions 1, 4, and 5.

Thus, the correct answer is:  
**a. Heptane-1,4,5-triol**

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### **Question 55: IUPAC Name for the Structure**
The structure shown is an ester. The right part has a propyl group (-OCH2CH2CH3), and the left part has a cyclohexyl group attached to a pentanoate chain.

For naming:
1. The base chain is pentanoate (5 carbons in the ester chain).
2. The cyclohexyl group is attached at the fourth carbon.

Thus, the correct name is:  
**a. Propyl 4-cyclohexylpentanoate**

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### **Question 56: Boiling Points of Alcohols**
This question asks about the boiling points of alcohols compared to other types of compounds and the reason for their higher boiling points.

Alcohols have higher boiling points than both ethers and alkanes due to strong hydrogen bonding between alcohol molecules. These interactions require more energy to break.

Thus, the correct answer is:  
**c. Alcohols have higher boiling points because of the strong interaction between alcohol molecules that requires higher energy to break down.**

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### **Question 57: Boiling Points of Alcohols**
This question looks at the boiling points of alcohols in terms of hydrocarbon chain length and primary, secondary, or tertiary classification.

1. As the hydrocarbon chain length increases, the boiling point increases due to larger molecular size.
2. Primary alcohols generally have a higher boiling point than tertiary alcohols because of less steric hindrance and better hydrogen bonding ability.

Thus, the correct answer is:  
**d. Both a and b**

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### **Question 58: Alcohol with Lowest Solubility**
Alcohol solubility in water decreases as the hydrocarbon chain length increases because the nonpolar hydrocarbon part becomes dominant, reducing solubility.

The alcohol with the longest hydrocarbon chain will have the lowest solubility.

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If you would like further details or explanation on any of these, feel free to ask!

### 5 Related Questions:
1. Why do longer hydrocarbon chains reduce solubility in water?
2. What is the difference in boiling points between primary, secondary, and tertiary alcohols?
3. How does branching in hydrocarbons affect boiling points and solubility?
4. Can you explain how hydrogen bonding influences the physical properties of alcohols?
5. How are esters named systematically according to IUPAC rules?

### Tip:
When naming organic compounds, always start by identifying the longest carbon chain, and then number the substituents based on the lowest possible locants.

The IUPAC name for the following structure, comparison of boiling points of alcohols, and alcohol solubility.

Learn how to determine the IUPAC names for organic compounds, analyze the boiling points of alcohols, and understand alcohol solubility in water. This content covers key chemistry concepts like hydrogen bonding, the impact of molecular structure, and detailed rules for organic compound naming.

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