Conceptual Physical Science Explorations
2nd Edition
ISBN: 9780321567918
Author: Paul G. Hewitt, Leslie A. Hewitt, John A Suchocki
Publisher: Addison Wesley
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Question
Chapter 23, Problem 5TE
To determine
The reason due to which lipids are insoluble in water.
Expert Solution & Answer
Answer to Problem 5TE
Lipid molecules are non-polar whereas water is polar molecule. This is the only reason due to which lipids are insoluble in water.
Explanation of Solution
Lipids or fats are compound of biological origin that dissolves in nonpolar solvent such as chloroform and ethanol. Water is a type of polar solvent. Lipids being hydrophobic are insoluble in water and as the result of this water molecules could not attach with lipid molecules. This is the only reason due to which oil floats over the surface of water when mixed into it.
The lipid layer is immiscible with the layer of water as the result of this a boundary is clearly visible which is evident for the two separated layers are found in the mixture of lipid and water.
Conclusion:
Lipid molecules are non-polar in nature and therefore get easily soluble in organic solvents like chloroform. However, they are water hating due to which they are insoluble in polar solvent like water.
Chapter 23 Solutions
Conceptual Physical Science Explorations
Ch. 23 - Prob. 1RQCh. 23 - Prob. 2RQCh. 23 - Prob. 3RQCh. 23 - Which monosaccharide do starches and cellulose...Ch. 23 - Prob. 5RQCh. 23 - Prob. 6RQCh. 23 - What makes a saturated fat saturated?Ch. 23 - What do all steroids have in common?Ch. 23 - How do various amino acids differ from one...Ch. 23 - What do a peptide, polypeptide, and protein all...
Ch. 23 - What is the difference between a nucleic acid and...Ch. 23 - Prob. 12RQCh. 23 - Prob. 13RQCh. 23 - Prob. 14RQCh. 23 - Why is it often more healthful to eat vegetables...Ch. 23 - What is general outcome of catabolism?Ch. 23 - What is the general outcome of anabolism?Ch. 23 - Which type of biomolecule does the food pyramid...Ch. 23 - Are all dietary fibers made of cellulose?Ch. 23 - Prob. 20RQCh. 23 - Rank the following molecules in order of...Ch. 23 - Rank the following molecules in order of...Ch. 23 - Rank the following mineral ions in order of how...Ch. 23 - Does a carbohydrate contain water?Ch. 23 - What is another biological use for carbohydrates...Ch. 23 - Prob. 3TECh. 23 - In what ways are cellulose and starch similar to...Ch. 23 - Prob. 5TECh. 23 - Why is it important to have cholesterol in your...Ch. 23 - Could a food product containing glycerol and fatty...Ch. 23 - Prob. 8TECh. 23 - Prob. 9TECh. 23 - In what way is the chemical structure of DNA...Ch. 23 - Prob. 11TECh. 23 - The dietary minerals must be in ionic form in...Ch. 23 - Prob. 13TECh. 23 - Prob. 14TECh. 23 - Suggest why the glycemic index for sucrose is only...Ch. 23 - Is it possible to eat a food low on the glycemic...Ch. 23 - Prob. 17TECh. 23 - Prob. 18TECh. 23 - Prob. 19TECh. 23 - Cold cereal is often fortified with all sorts of...Ch. 23 - Prob. 1RATCh. 23 - Prob. 2RATCh. 23 - Prob. 3RATCh. 23 - Prob. 4RATCh. 23 - Prob. 5RATCh. 23 - Prob. 6RATCh. 23 - Prob. 7RATCh. 23 - Vitamins such as vitamin B and vitamin C are often...Ch. 23 - Prob. 9RATCh. 23 - Prob. 10RAT
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