Which molecule is less soluble in water--a fat or a phospholipid? why? which molecule is less soluble in water--a fat or a phospholipid? why? a fat molecule is less soluble in water because it has more carbons and hydrogens than a phospholipid. a phospholipid is less soluble in water because it is smaller than a fat molecule. a fat molecule is less soluble in water because it has three non-polar fatty acids and no polar or charged head like a phospholipid has. a phospholipid is less soluble in water because even though it has one end that is hydrophilic, the end that is hydrophobic is larger?

Option (c) is the correct answer.

Explanation:

A fat is defined as a substance which is highly soluble in organic solvents but it is largely insoluble in water.

These molecules are less soluble in water because it contains three non-polar fatty acids and no polar or charged head like a phospholipid has.

On the other hand, a phospholipid molecule contains a hydrophilic head that is highly soluble in water.

Hence, due to the presence of hydrophilic group a phospholipid is soluble in water.

Thus, we can conclude that a fat molecule is less soluble in water because it has three non-polar fatty acids and no polar or charged head like a phospholipid has.