Home » Ask & Discuss » Chemistry. » Organic Chemistry « Back to Discussion
Organic Chemistry
Comments (3)
1 Feb 2011 10:18:54 IST
Like
0 people liked this
Both glycerol and water are polar molecules that attract each other by hydrogen bonds.The reason for this is that they both contain hydrogen atoms that are bonded to oxygen, an atom with a small radius and high electro negativity.The polarity of glycerol is due to three -OH groups attached to each of the three carbon atoms in the chain. Since there are as many as three such groups, would make glycerol even more polar than water.













Because there is a greater amount of intermolecular forces in glycerol than in water
Both glycerol and water are polar molecules that attract each other by hydrogen bonds.
The reason for this is that they both contain hydrogen atoms that are bonded to oxygen, an atom with a small radius and high electronegativity.
The polarity of glycerol is due to three -OH groups attached to each of the three carbon atoms in the chain. Since there are as many as three such groups, would make glycerol even more polar than water.
Moreover, all molecules attract one another by so-called London forces that depend on the masses of molecules.
The molecular mass of H2O is about 18 amu, while the molecular mass of C3H5(OH)3 is about 92 amu, making London forces between glycerol molecules stronger than London forces between water molecules.