Which fatty acid variant exhibits greater solubility in organic solvents alongside a higher melting point____________?
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Answer: C. Palmitic acid
Explanation
Palmitic acid features a long hydrocarbon chain granting it higher lipid and organic solvent solubility. Its greater molecular weight and hydrophobic chain length also result in a significantly higher melting point. Saturated fatty acids like palmitic acid pack tightly together requiring more thermal energy to melt. Fatty acids consist of carboxylic acid groups attached to long unbranched aliphatic hydrocarbon chains. Palmitic acid is a common sixteen-carbon saturated fatty acid found extensively in animal and plant lipids. Melting points of fatty acids generally increase as their molecular carbon chain length increases.
Palmitic acid is widely used in manufacturing soaps, cosmetics, and various industrial lubricant formulations. Dietary intake of specific saturated fatty acids influences human cardiovascular health and cellular membrane fluidity. Industrial chemical synthesis often relies on organic solvents to dissolve long-chain fatty acid compounds. Acetic acid is a very short-chain carboxylic acid with high water solubility and low melting point. Butyric acid is a short four-carbon fatty acid possessing high water solubility and distinct odor. The final option is incorrect because fatty acid physical properties vary significantly based on chain length.
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