Chapter 13 Solutions and Their Behavior - 13-4 Colligative Properties - Review & Check for Section 13-4 - Page 497: 3

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Since all these solutions are of non-volatile nonionic solutes in the same mass of water, the one with the highest boiling point will be the one with the higher number of moles: sucrose: $3.0\ g/342.30\ g/mol=0.009\ mol$ glycerol: $1.0\ g/92.09\ g/mol=0.011\ mol$ propylene glycol: $1.0\ g/76.10\ g/mol=0.013\ mol$