Water’s molar mass is 18.01 g/mol. the molar mass of glycerol is 92.09 g/mol. at 25°c, glycerol is more viscous than water. which substance has the stronger intermolecular attraction? 1.glycerol because it has a larger molar mass 2.glycerol because it is more viscous and has a larger molar mass 3.water because it has a lower molar mass 4.water because it is less viscous and has a lower molar mass

           Option-2 : Glycerol because it is more viscous and has a larger molar mass.

                   Viscosity is defined as the resistance experienced by the layers of liquid while moving and sliding over each other. Viscosity depends on different properties including temperature and intermolecular interactions. As shown in figure attached, both Glycerol and Water contains hydroxyl groups, which are involved in hydrogen bond interactions.

                   Hydrogen Bond Interactions are those interactions which are formed between a partial positive hydrogen atom bonded directly to most electronegative atoms (i.e. F, O and N) of one molecule interacts with the partial negative most electronegative atom of another molecule.

                   Therefore, due to presence of three hydroxyl groups in Glycerol, it will experience greater intermolecular interactions and therefore, will offer more resistance (viscous) to the flow of layers.

2.glycerol because it is more viscous and has a larger molar mass

Explanation:

Viscosity of a solution depends directly on the strength of inter molecular forces. The strength of forces is directly proportional to the molecular mass.

The molecules of glycerol   are more strongly bonded through hydrogen bonds as there are three OH groups which can participate in formation of hydrogen bonds.

But in water , only one -OH group is present and thus extent of hydrogen bonding is less.

Thus we can conclude that glycerol has more attractive forces as compared to water.

c. orbital shape i hope this is correct