Organic solids are best purified by a. recrystallization b. vacuum distillation c. fractional distillation d. simple distillation

Which compounds are water soluble? a. LiCI water soluble b. C-Hs (select) c. NazPO4 (select)

Why is it important to know if a substance is a molecular compound or an ionic compound before predicting its effect on the boiling and freezing points of a solvent?   Ionic compounds dissociate, resulting in more particles in solution, which affects the b.p. and f.p. Molecular compounds dissociate easier than ionic compounds, thereby having a greater effect on the b.p. and f.p. Ionic compounds have higher boiling points and lower freezing points than molecular compounds Ionic compounds have the opposite effect on freezing and boiling points than molecular compounds. Molecular compounds have greater intermolecular forces than ionic compounds Molecular compounds have a greater effect on the van't Hoff factor than ionic compounds

8. Describe what happens when iodine / water is added Does the iodine dissolve better in the water layer or in the decane layer? Explain why using molecular structures, intermolecular forces and polarity? Miscibility of Liquids Tube Results A C Kerosene structure Water structure Isopropyl alcohol structure Consider these structures along with your observations of what happened in each tube and briefly explain the results using structures, polarity and intermolecular forces. Page 2 of 6