Please select all that apply The melting point of lauric acid CH3(CH2)10CO2H is
ID: 990325 • Letter: P
Question
Please select all that apply
The melting point of lauric acid CH3(CH2)10CO2H is 43°C.
The melting point of stearic acid CH3(CH2)16CO2H is 69°C.
Which of the following statements explains why the melting point of lauric acid is lower than the melting point of stearic acid? Select only those responses that apply correctly.
1. The hydrophobic tail of lauric acid is longer than the hydrophobic tail of stearic acid.
2. Stearic acid is soluble in water and lauric acid is not soluble in water.
3. Stearic acid is a fatty acid, whereas lauric acid is not a fatty acid.
4. Lauric acids has more polar carboxylic acid group than stearic acids.
5. The London force interactions are stronger in stearic acid than they are in lauric acid .
Explanation / Answer
The melting point of lauric acid CH3(CH2)10CO2H is 43°C.
The melting point of stearic acid CH3(CH2)16CO2H is 69°C.
Which of the following statements explains why the melting point of lauric acid is lower than the melting point of stearic acid? Select only those responses that apply correctly.
A) 5. The London force interactions are stronger in stearic acid than they are in lauric acid .
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