Which Compound Is More Soluble in Water: Heptanoic Acid or 1-Octanol?

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Heptanoic acid is expected to be more soluble in water than 1-octanol due to its ability to form stronger hydrogen bonds. In the comparison between 2-propanone and 1-propanol, 1-propanol is considered more soluble because it has a hydroxyl group that enhances hydrogen bonding. Compounds with fewer than five carbon atoms, like alcohols, ethers, and epoxides, tend to be water-soluble due to their oxygen atoms facilitating hydrogen bonding. Conversely, compounds with more than five carbon atoms generally become insoluble as their non-polar alkyl portions dominate. Understanding these solubility trends is crucial for exam preparation.
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Homework Statement


Which compound would you expect to be more soluble in water: heptanoic acid or 1-octanol?

Which of the compounds has the greater solubility in water and why?
2-Propanone or 1-Propanol

Homework Equations


The Attempt at a Solution


I believe for the first question that the answer is heptanoic acid because it has increased hydrogen bonding. I think the second answer is alcohol for the same reason.

I have an exam tomorrow, so if anyone could clear this up I'd be very appreciative.
 
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"alcohols, ethers and epoxides having less than or 5 carbon atoms are water soluble because they each have an oxygen atom capable of hydrogen bonding."

"alcohols, ethers and epoxides having more than 5 carbon atoms are insoluble because the non-polar alkyl portion is too large to dissolve in water"
 
Thanks for your reply Cronxeh. I know they're both soluble, but what I need to know is which is MORE soluble.
 

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