The exam will cover the material found in all of Chapter 4 and the beginning of Chapter 6. Remember, the best way to prepare is to complete the OWL assignments and do the optional Chapter Review questions. The following list is provided to help guide your preparation, but may not include everything.

 

You will be provided with a periodic table with the exam. You may bring a calculator and one page of notes. A good starting point for your notes page is Dr. ViningÕs Super Net Ionic Equation Help Sheet.

 

Be able to:

1.    Identify a strong electrolyte, a weak electrolyte, strong and weak acids, and strong and weak bases.

2.    Identify the products that form when an ionic compound is placed into water.

3.    Identify the spectator ions in a reaction.

4.    Determine what products will be produced when two aqueous solutions are mixed.

5.    Determine whether a compound is soluble in water using the solubility rules.

6.    Determine the oxidation number of an element in ion or a compound.

7.    Identify which compound that is oxidized and which is reduced in a redox reaction.

8.    Determine the oxidizing agent and the reducing agent in a redox reaction.

9.    When presented with an organic reaction, identify whether it is an addition, elimination, isomerization, substitution, or combustion.

 

Calculations you should be comfortable doing:

1.    Calculate the molarity of a solution (given mass and volume, moles and volume, or by diluting a solution of known molarity).

2.    Given molarity and volume, determine the number of moles.

3.    Titration calculations:

a.    Molarity of a solution based on a titration (given molarity and volume)

b.    Molar mass of an unknown based on a titration (given molarity, volume, and mass of unknown)

4.    Write a balanced molecular equation, total ionic equation, and net ionic equation for aqueous chemical reactions.

5.    Calculate the pH or pOH of a solution given the hydronium ion concentration.

6.    Calculate the hydronium or hydroxide ion concentration of a solution given the pH.

7.    Determine the wavelength of an electromagnetic wave given the frequency or determine the frequency given the wavelength.

 

 

Concepts to understand:

1.    Know what strong and weak electrolytes are

2.    Understand the terms monoprotic, diprotic, etc.

3.    Be able to classify a reaction according to the types we discussed in lecture (synthesis, decomposition, single displacement, double displacement, precipitation, acid-base, redox, gas forming).

4.    Electromagnetic radiation- Identify the basic categories of electromagnetic radiation (e.g., visible light, microwaves, etc.) and their wavelengths, frequencies, and energies.