Question

waters 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?
o glycerol because it has a larger molar mass
o glycerol because it is more viscous and has a larger molar mass
o water because it has a lower molar mass
o water because it is less viscous and has a lower molar mass

Explanation:

Viscosity is related to intermolecular forces. A more viscous substance has stronger intermolecular attractions. Glycerol is more viscous than water and also has a larger molar - mass which can contribute to stronger intermolecular forces like London dispersion forces in addition to other possible forces such as hydrogen - bonding (in both water and glycerol).

Answer:

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