Test Objectives- Reaction Stoichiometry (Chapter 9)

Be able to…

 1.    Calculate the mass of a mole of any substance (molar mass)

2.    Use molar mass in calculations- example: given moles, find mass.

3.    Identify and use the mole ratio from a balanced equation in reaction stoichiometry problems.

4.    Solve basic reaction stoichiometry problems. Mole-mole, Mass-mass, Mass-molecules.

5.    Understand how to use molar volume to convert between moles and volume of a gas at STP.

6.    Solve basic reaction stoichiometry problems involving the volume of a gas at STP.

7.    Distinguish between limiting and excess reagent.

8.    Determine percent yield as done in the lab (see p. 278)

9.    Solve a limiting reagent problem.

10. As usual, you should know how to calculate percent error.

Reminders: You should have problem sets that you completed for homework and were evaluated in class, look them over. There may be a few true/false and multiple-choice items on this test, but most is problem solving.

Also, it is expected that you can write chemical formulas, balance equations, convert metric units, use the language of chemistry, and know how to work with scientific notation and significant figures. You will have access to a periodic table but molar masses will be provided.