1.) the Following Diagram Represents the Reaction of A2 (Black Spheres) and B2 (White Spheres)

Chapters 3 and 4 Leader: Carlie Worksheet Course: Chem 177 Supplemental Instruction Instructor: Greenbowe Iowa State University Date: 9/21/11

1.) The following diagram represents the reaction of A2 (black spheres) and B2 (white spheres)

a.) What is the limiting reactant? (circle the correct answer)

A2 B2 A3B both A2 and B2 b.) How many moles of the product can be made from 0.10 mol A2 and 0.10 mol B2?

2.) 1.00 mol of Al is allowed to react with 99.0g of Br2. 2 Al (s) + 3 Br2(l)  2AlBr3 (s)

a.) What is the theoretical yield in grams on AlBr3?

b.) What is the mass amount of excess reactant?

3.) Three different substances, A2X, A2Y and A2Z were dissolved in water with the following results. (Water molecules omitted for clarity). Which of the substances is the strongest electrolyte? The weakest?

Supplemental Instruction 1060 Hixson-Lied Student Success Center v 294-6624 v www.si.iastate.edu 4.) Which of the following compounds is a nonelectrolyte?

a.) NaOH b.) HNO3 c.) C2H6O d.) KF e.) CH3COOH (acetic acid)

5.) Name the 7 strong acids

6.) Define:

Solvent-

Solute-

Electrolyte-

Nonelectrolyte-

Precipitate-

Solubility-