Due Friday, August 18 th, 2017 Mrs. Hockstok - AP Chemistry Class Olentangy Orange High School Summer Assignment

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1 Due Friday, August 18 th, 2017 Mrs. Hockstok - AP Chemistry Class Olentangy Orange High School Summer Assignment You will have a quiz on the first day of school (August 16 th, 2017) on the polyatomic ions. You MUST memorize these. You will have a REVIEW TEST over Part I, Part II and Part III of this summer assignment on the first Friday of school (August 18 th, 2017). Get an early start!!! Part I: Polyatomic Ions Name Symbol Polyatomic Ions Name Symbol ammonium NH4 + nitrite NO2 - acetate C2H3O2 - permanganate MnO4 - bromate BrO3 - thiocyanate SCN - perchlorate ClO4 - carbonate CO3 2- chlorate ClO3 - dichromate Cr2O7 2- chlorite ClO2 - chromate CrO4 2- hypochlorite ClO - oxalate C2O4 2- cyanide CN - selenate SeO4 2- dihydrogen phosphate H2PO4 - silicate SiO3 2- hydrogen carbonate (bicarbonate) HCO3 - sulfate SO4 2- hydrogen sulfate (bisulfate) HSO4 - sulfite SO3 2- hydrogen sulfite (bisulfite) HSO3 - peroxide O2 2- hydroxide OH - phosphate PO4 3- iodate IO3 - phosphite PO3 3- nitrate NO3 - mercury(i) or mercurous Hg2 2+ mercury (II) Hg 2+ Elbow consists of B,C, N, O, F, Cl, Br, I & At. All other elements are outside the elbow Elbow Polyatomic Ions: ate = 3 oxygen (nitrate NO3-1 ) Acid: ic = 3 oxygen (nitric acid HNO3) Polyatomic Ions: ite = 2 oxygen (chlorite ClO2-1 ) Acid: ous = 2 oxygen (chlorous acid HClO2) Outside Elbow Polyatomic Ions: ate = 4 oxygen (phosphate PO4-3 ) Polyatomic Ions: ite = 3 oxygen (sulfite SO3-2 ) Binary Acids Hydro+root of nonmetal+ ic+ acid Acid: ic = 4 oxygen (phosphoric acid - H3PO4) Acid: ous = 3 oxygen (sulfurous Acid H2SO3) HCl hydrochloric acid Oxyacids Most oxygen per + root nonmetal + ic + acid Ex. HBrO4 perbromic acid More oxygen root nonmetal + ic + acid HBrO3 bromic acid Less oxygen root nonmetal + ous + acid HBrO2 bromous acid Least oxygen hypo + root nonmetal + ous + acid HBrO hypobromous acid In the new AP curriculum it is not necessary to memorize all solubility rules. You only need to know the following: - Salts that contain nitrate (NO3 - ), ammonium (NH4 + ) or the alkali metals (Group IA) are ALWAYS soluble (aq). NO B C N O F Si P S Cl As Se Br Te I AP Chemistry 1 AP Summer Assignment

2 Part II Chemical Formulas: A helpful website: 1. Write formulas for the following: 2. Name each of the following: Due Friday, August 18 th, 2017 a. barium sulfate a. CuSO4 b. ammonium chloride b. PCl3 c. chlorine monoxide c. Li3N d. silicon tetrachloride d. BaSO3 e. magnesium fluoride e. N2F4 f. sodium oxide f. KClO4 g. sodium peroxide g. NaH h. copper(i) oxide h. (NH4)2Cr2O7 i. zinc sulfide i. HNO2 * j. potassium carbonate j. Sr3P2 k. hydrobromic acid k. Mg(OH)2 l. perchloric acid l. Al2S3 m. lead(ii) acetate m. AgBr n. sodium permanganate n. P4O10 o. lithium oxalate o. HC2H3O2* p. potassium cyanide p. CaI2 q. iron (III) hydroxide q. MnO2 r. silicon dioxide r. Li2O s. nitrogen trifluoride s. FeI3 t. chromium(iii) oxide t. Cu3PO4 u. calcium chlorate u. PCl5 v. sodium thiocyanate v. NaCN w. nitrous acid w. HF * *Name as acids. AP Chemistry 2 AP Summer Assignment

3 Part III Chemistry Basics 1. An empty vial weighs g. Due Friday, August 18 th, 2017 a. If the vial weighs g when filled with liquid mercury (d=13.53 g/cm 3 ), what is its volume? b. How much would the vial weigh if it were filled with water (d= g/cm 3 at 25 C)? 2. Underline the significant zeros in the following numbers a b. 508 c x10 3 d Round the following numbers to 3 significant figures a b x10 3 c. 17, Perform the indicated operations and round your answers to the proper number of significant figures. Assume that all answers were obtained from measurements. a. (2.11x10-3 ) + (1.54x10.3 ) c. ( )/1.23x10 2 b. 1.54x x10-2 d. (1.23x10-2 )( ) 5. Galena, a mineral of lead, is a compound of the metal with sulfur. Analysis shows that a 2.34 g sample of galena contains 2.03 g of lead. Calculate the a. Mass of sulfur in the sample b. Mass fractions of lead and sulfur of galena c. Mass percents of lead and sulfur in galena AP Chemistry 3 AP Summer Assignment

4 Argon has three naturally occurring isotopes Ar, Ar, and Ar. What is the mass number of each isotope? How many protons, neutrons, and electrons are present in each? Copper has two naturally occurring isotopes, Cu and Cu with isotopic mass of and amu respectively, what is the percent abundance of each isotope? 8. An ionic compound forms when calcium reacts with iodine. If a sample of the compound contains 7.4x10 21 calcium ions, how many iodide ions does it contain? 9. Calculate each of the following quantities: a. Total number of ions in 38.1 g of CaF2 b. Mass in milligrams of 3.58 mol of CuCl2 2H2O c. Mass in kilograms of 2.88x10 22 formula units of Bi(NO3)3 5H2O 10. What is the molecular formula of each compound? a. Empirical Formula CH (Molar mass = g/mol) b. Empirical Formula C7H4O2 (Molar mass = g/mol) AP Chemistry 4 AP Summer Assignment

5 11. Determine the empirical formula of each of the following compounds: a mol of iron atoms combined with mol of oxygen b g of phosphorus combined with 6.99 g of bromine c. A hydrocarbon with 79.9% carbon 20.1% hydrogen. 12. Predict the products and write the balanced equation a. Copper (II) nitrate reacts with potassium hydroxide b. Hexane burns in oxygen c. Calcium chloride and sodium phosphate react 13. A mixture of g of hydrogen and mol of oxygen in a closed container is sparked to initiate a reaction. a. Balanced Equation b. How many grams of water can form? c. Which reactant is in excess? d. How many grams of the excess reactant remain? AP Chemistry 5 AP Summer Assignment

6 14. Calculate each of the following quantities: a. Volume in liters of 2.26 M potassium hydroxide that contains 8.42 g of solute? b. Number of Cu 2+ ions in 52 L of 2.3 M copper (II) chloride c. Molarity of 275 ml of solution containing 135 mmol of glucose 15. Which reactant is in excess and by how many moles when ml of M sulfuric acid reacts with L of M sodium hydroxide? a. Balanced Equation b. Reactant in excess c. Moles of sulfuric acid 16. What is the effect of the following on the volume of 1 mol of an ideal gas? a. The pressure is reduced by a factor of 4 (at constant T) b. The pressure changes from 760 torr to 202 kpa, and the temperature changes from 37 C to 155 K c. The temperature changes from 305 K to 32 C, and the pressure changes from 2 atm to 101 kpa. AP Chemistry 6 AP Summer Assignment

7 17. What is the density of Freon-11 (CFCl3) at 120 C and 1.5 atm? 18. How many grams of potassium chlorate decompose to potassium chloride and 638 ml of O2 at 128 C and 752 torr? a. Balanced equation b. Mass of potassium chlorate AP Chemistry 7 AP Summer Assignment