Recap - Pigments and Hexane

Part of the Structure and Bonding section of Coddy's Chemistry journey. Lesson 47 of 49.

Challenge

Spinach leaves hold several colored pigments. Carotene, the orange one, is a long chain of carbon and hydrogen atoms with no polar groups. A student wants a solvent that dissolves carotene but not the water-loving pigments, and considers hexane and tetrachloromethane, CCl₄.

Like dissolves like: a non-polar pigment dissolves in a non-polar solvent. Decide whether CCl₄ is a polar molecule, and name the strongest force between its molecules.

Try it yourself

Shape viewerDescribe the molecule CCl₄

All lessons in Structure and Bonding

2Covalent Bonds

Sharing Electrons Counting Valence Electrons Drawing Lewis Structures Double and Triple Bonds Lone Pairs Formal Charge Lewis Structures of Ions Recap - Molecule Builder

5Forces Between Molecules

London Forces Dipole-Dipole Forces Hydrogen Bonds Boiling Points Like Dissolves Like Recap - Boiling Contest

8Practice Problems

Recap - Polar Bonds SurveyRecap - Pigments and HexaneRecap - Butanol and Ether Recap - Dots on an Oxide

3Shapes of Molecules

Electron Groups Linear and Trigonal Planar Tetrahedral Molecules Pyramids and Bent Molecules Bond Angles Recap - Shape Detective

6Metals and Giant Structures

Metallic Bonding Diamond and Graphite Giant Covalent Structures Four Kinds of Substance Recap - Material Match