Asked by julie
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?
glycerol because it has a larger molar mass
glycerol because it is more viscous and has a larger molar mass
water because it has a lower molar mass
water because it is less viscous and has a lower molar mass
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glycerol because it is more viscous and has a larger molar mass
Reason: glycerol has three OH groups so it forms stronger hydrogen bonds (and its larger molar mass increases dispersion forces), which gives it much higher viscosity than water. Viscosity is a sign of stronger intermolecular attractions.
Reason: glycerol has three OH groups so it forms stronger hydrogen bonds (and its larger molar mass increases dispersion forces), which gives it much higher viscosity than water. Viscosity is a sign of stronger intermolecular attractions.
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