Ch.1 - Intro to General ChemistryWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: You are assigned the task of separating a desired granular material, with a density of 3.62 g/cm3, from an undesired granular material that has a density of 2.04 g/cm3. You want to do this by shaking the mixture in a liquid in which the heavier material will fall to the bottom and the lighter material will float. A solid will float on any liquid that is more dense. Using the Internet or a handbook of chemistry, look for the densities of the following substances: carbon tetrachloride, hexane, benzene, and diiodomethane.Which of these liquids will serve your purpose, assuming no chemical interaction between the liquid and the solids?

Solution: You are assigned the task of separating a desired granular material, with a density of 3.62 g/cm3, from an undesired granular material that has a density of 2.04 g/cm3. You want to do this by shaking

Problem

You are assigned the task of separating a desired granular material, with a density of 3.62 g/cm3, from an undesired granular material that has a density of 2.04 g/cm3. You want to do this by shaking the mixture in a liquid in which the heavier material will fall to the bottom and the lighter material will float. A solid will float on any liquid that is more dense. Using the Internet or a handbook of chemistry, look for the densities of the following substances: carbon tetrachloride, hexane, benzene, and diiodomethane.

Which of these liquids will serve your purpose, assuming no chemical interaction between the liquid and the solids?