CHE 111 Homework #3 (Chapter 10 and 11) (30 pts total) Multiple Choice Questions ( 2 pts each) 1. What type of attractive forces are being overcome when liquid nitrogen boils at 77K ? a.) hydrogen bonding b.) dispersion forces c.) covalent bonds d.) dipole-dipole forces 2. Which of the hydrogen atoms in a formic acid molecule can form hydrogen bonds with other molecules of formic acid? a.) none of the hydrogen atoms b.) all of the hydrogen atoms c.) the hydrogen bonded to carbon d.) the hydrogen bonded to oxygen 3. Which arrow on the phase diagram corresponds to the phase transition of liquid to gas? a.) A b.) B c.) C d.) D e.) E f.) F 4. Which of the following solvents would you expect NaCl to be most soluble in? a.) water b.) acetone c.) isopropanol d.) hexane 5. Which of the following gaseous solutes has the highest solubility in water? a.) He b.) N2 c.) CH3Cl d.) O2