AP Chemistry Summer Assignment
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1 AP Chemistry Summer Assignment Due Date: Thursday, September 1 st, 2011 Directions: Show all of your work for full credit. Include units and labels. Record answers to the correct number of significant figures. Part I: Chemical Formulas Write the chemical formulas for each of the following substances. 1. Barium sulfate 2. Ammonium chloride 3. Chlorine monoxide 4. Silicon tetrachloride 5. Sodium oxide 6. Sodium peroxide 7. Copper (I) iodide 8. Zinc sulfide 9. Potassium carbonate 10. Hydrobromic acid 11. Perchloric acid 12. Lead (II) acetate 13. Sodium permanganate 14. Lithium oxalate 15. Potassium cyanide 16. Copper (II) chloride dihydrate 17. Silicon dioxide 18. Pentanitrogen nonafluoride 19. Calcium chlorate 20. Sodium thiocyanate 21. Cobalt (III) nitrate 22. Nitrous acid 23. Ammonium phosphate 24. Hypochloric acid 25. Potassium chromate Write the name of each of the following compounds. 1. CuSO 4 2. PCl 3 3. Li 3 N 4. BaSO 3 5. KClO 4 6. NaH 7. (NH 4 ) 2 Cr 2 O 7 8. HNO 2 9. Sr 3 P Mg(OH) Al 2 S H 2 O AgBr 14. P 4 O CH 3 COOH 16. CaI MnO Li 2 O 19. FeI Cu 3 PO MgSO NaCN 23. Zn(NO 3 ) HF 25. HClO 2 1 P a g e
2 Part II: Chemical Equations For each equation below, identify the type of chemical reaction (synthesis, decomposition, single replacement, double replacement, or combustion), predict the products and write the balanced equation. 1. Ammonium sulfate reacts with barium nitrate. Reaction Type: 2. Zinc metal is added to a solution of copper (II) chloride. Reaction Type: 3. Propane gas (C 3 H 8 ) is burned in excess oxygen. Reaction Type: 4. Solid calcium chlorate is heated strongly. Reaction Type: 5. Magnesium and nitrogen gas are heated together. Reaction Type: 6. Chlorine gas is bubbled through a solution of sodium bromide. Reaction Type: 7. Solutions of lead nitrate and calcium iodide are combined. Reaction Type: 8. Sulfuric acid is combined with sodium hydroxide. Reaction Type: 9. Isopropyl alcohol (C 3 H 7 OH) is burned in oxygen. Reaction Type: 10. Iron metal shavings are added to hydrochloric acid. Reaction Type: 11. Solid sodium carbonate is heated in a crucible. Reaction Type: 12. Sodium metal is added to distilled water. Reaction Type: 2 P a g e
3 Part III: Stoichiometry 1. Find the mass percent of nitrogen in each of the following compounds. a. NO b. NO 2 c. N 2 O 4 d. N 2 O 2. Benzene contains only carbon and hydrogen and has a molar mass of 78.1 g/mol. Analysis shows the compound to be 7.74% hydrogen by mass. Find the empirical and molecular formulas of benzene. 3. Calcium carbonate decomposes upon heating, producing calcium oxide and carbon dioxide gas. b. How many grams of calcium oxide will be produced after g of calcium carbonate is completely decomposed? c. What volume of carbon dioxide gas is produced from this amount of calcium carbonate at STP? 3 P a g e
4 4. Hydrogen gas and bromine gas react to form hydrogen bromide gas. b g of hydrogen gas and 9.50 g of bromine gas react. Which is the limiting reagent? c. How many grams of hydrogen bromide gas can be produced using the amounts in (b)? d. How many grams of the excess reactant is left unreacted? e. What volume of HBr, measured at STP, is produced in (b)? 5. When ammonia gas, oxygen gas and methane gas (CH 4 ) are combined, the products are hydrogen cyanide gas and water. b. Calculate the mass of each product produced when 225 g of oxygen gas is reacted with an excess of the other two reactants. 4 P a g e
5 c. If the actual yield of the experiment in (b) is 105 g of HCN, calculate the percent yield. 6. When solutions of potassium iodide and lead (II) nitrate are combined, the products are potassium nitrate and lead (II) iodide. a. Write a balanced equation for this reaction, including (aq) and (s). b. Calculate the mass of precipitate produced when 50.0mL of 0.45M potassium iodide solution and 75mL of 0.55M lead (II) nitrate solution are mixed. c. Calculate the volume of 0.50M potassium iodide required to react completely with 50.0mL of 0.50M lead (II) nitrate. Part IV: Structure of Matter Describe how you would separate and recover into four separate containers the following four components of a mixture: liquid water (H 2 O (l)) + iron filings (Fe (s)) + sodium chloride dissolved in water (NaCl (aq)) + beach sand grains (SiO 2 (s)). Part V: me at patonj@granby.k12.ct.us with the address you prefer me to contact you at throughout the year. Include the name of the AP Chemistry review book you have purchased to use throughout the year. 5 P a g e
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