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?
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
Chapter 4 Study Questions Answer on whiteboards Work together PPT will be online
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
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
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
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
If 5.00 grams of sodium hydroxide is dissolved to make 600 mL of solution, what is its molarity?
How many grams of potassium chloride has to be dissolved in water to produce 2.0 liters of a 2.45 M solution?
If 24.63 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).
What is the molarity of the solution that results from adding 25 mL of a 0.15 M solution of sodium hydroxide to sufficient water to make 500 mL of solution?
What volume of a 2.50 M solution of hydrochloric acid is required to prepare 2.0 liters of a 0.30 M solution?
When excess silver nitrate was added to a 25 When excess silver nitrate was added to a 25.0 mL sample of a solution of calcium chloride, 0.9256 gram of silver chloride precipitated. What is the concentration of the calcium chloride solution?
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