Chemistry 110

Study Guide

Chapters 4 & 5

 

Chapter 4

 

Molarity-know definition Molarity = #moles/liter = #liters

 

Be able to tell how you would prepare a specified volume of a solution of given molarity using pure solute and water. Problems 4.61, 4.62.

 

Be able to determine # moles of solute in a given volume of a solution of known molarity.

Be able to calculate what volume of a solution contains a given # moles of solute.

Be able to calculate M if # moles and volume given.

Problems:  4.51, 4.52.

 

Be able to give directions for preparing a dilute M solution from a concentrated M solution. Problems 4.59, 4.60.

 

Know what an electrolyte is and be able to classify compounds as electrolytes or nonelectrolytes. 4.25 (not a), 4.26 (not a). 

 

Be able to complete and balance acid-base (neutralization) reactions. Problem 4.27, 4.28.

 

Know names and molecular formulas for: acetic acid, sulfuric acid, hydrochloric acid, hydrobromic acid, nitric acid, phosphoric acid.

 

Solution stoichiometry. Be able to do problems like 4.67 a&b, 4.68 a&b.

 

Activity series. Be able to predict reactions between metals and acids or salts using the activity series (which will be provided). Be able to write the balanced oxidation-reduction chemical equations for these reactions. Problems: 4.43 a-d, 4.44 a-c.

 

Chapter 5

 

Know what kinetic energy, potential energy, and heat are, and how they are related by the law of conservation of energy. Problems: 5.1, 5.2.

 

We will not study thermodynamics, which is concerned with converting heat into work.

 

Know what heats (enthalpies) of reaction are, and be able to tell if a reaction (process) is exothermic or endothermic. Problems 5.27 a, 5.28 a.