2. Warm-Up
Nitrogen and hydrogen gas react to form ammonia according to the reaction
N2 (g) + 3H2 (g) –> 2NH3 (g)
If a flask contains the mixture of reactants represented to the right, which image below best represents the mixture in the flask after the reactants have reacted completely?
What is the limiting reactant?
Which reactant is in excess?

3. Quiz Friday Sections 4.1-4.2, 4.5-4.6 Labs are fair game
Might be some ch 1-3 stuff too!
Molarity, solubility, electrolytes, net ionic reactions, solution stoichiometry
The only solubility rules you MUST memorize are that potassium, sodium, ammonium, and nitrate compounds are ALWAYS soluble

4. Chapter 4 Study Questions
Answer on whiteboards
Work together
PPT will be online

5. Classify each of the following solutes as an electrolyte or nonelectrolyte
sugar
sodium hydroxide
common salt (NaCl)
hydrochloric acid
alcohol
copper sulfate
acetic acid
carbonic acid

6. Predict the solubility (will they dissolve in water or not) of the following salts:
sodium sulfate
potassium chromate
silver bromide
nickel (II) hydroxide
aluminum nitrate
barium sulfide
ammonium acetate
strontium iodide

7. Write the ions that are produced when the following substances dissolve in water.
Example: NaCl = Na+ and Cl-
Mg(OH)2
K2SO4
NaHCO3
(NH4) 3PO4
NaClO

8. Predict whether or not the following reactions will lead to a precipitate. Write detailed and net ionic equations for all the reactions.
potassium chromate and lead acetate
silver perchlorate and ammonium chloride
potassium carbonate and copper acetate
sodium fluoride and magnesium iodide
barium nitrate and potassium sulfate

9. If 5.00 grams of sodium hydroxide is dissolved to make 600 mL of solution, what is its molarity?

10. How many grams of potassium chloride has to be dissolved in water to produce 2.0 liters of a M solution?

11. If grams of magnesium chloride is dissolved to make exactly 3 liters of solution calculate the concentrations of the ions in the solution (in moles/liter).

12. What is the molarity of the solution that results from adding 25 mL of a M solution of sodium hydroxide to sufficient water to make 500 mL of solution?

13. What volume of a 2.50 M solution of hydrochloric acid is required to prepare 2.0 liters of a 0.30 M solution?

14. When excess silver nitrate was added to a 25
When excess silver nitrate was added to a mL sample of a solution of calcium chloride, gram of silver chloride precipitated. What is the concentration of the calcium chloride solution?

15. Determining the formula of Copper Oxide Lab
Read through the lab information
Complete the prelab in your lab notebook before class tomorrow
Safety – hair tied back, no loose clothing