AP Chemistry Mrs. Cimo 407-243-8534 (text) cimosm@myscps.us Congratulations on making the decision to take AP Chemistry! This course will move at a fast pace and cover a substantial amount of material, starting with the first day of school. So that we can spend more time on topics new to you in AP Chemistry, you are expected to be familiar with answering questions and solving problems using the content covered in your first year chemistry course. The attached review assignment covers first-year chemistry topics that will not be taught in AP chemistry. Copies of the periodic table and the metric prefixes you will be using in AP Chemistry are linked in this assignment. Please note that this periodic table does not include element names. Charges of monatomic ions and key polyatomic ions that need to be memorized are also included. You are encouraged to make flashcards or use the Quizlet ions card deck below to begin learning these ions. AP Chem Periodic Table & Equations https://tinyurl.com/mvfvdduw https://tinyurl.com/583ts6py Learn the element symbols. https://quizlet.com/4174/the-periodic-table-of-the-elements-flash-cards/ Learn common ions. https://quizlet.com/33412828/ions-flash-cards/ Significant Figures & Measurement How to Make Accurate Measurements https://youtu.be/sObrGonT71k 1. Identify the measurement to the correct number of place values: a. Rules for Significant Figures https://tinyurl.com/27njvp54 2. Identify the number of significant figures. a. b. c. d. e. f. g. h. i. j. 1,245 m 10,000 g 3.02003x1014 m 0.030 mL 1,000. m 10,733 g 0.00420 mg 990. Torr 325 K 0.0004 L 3. Round each of the following to 3 significant figures. b. c. d. a. b. c. d. e. f. g. h. i. j. 3.02003x1014 mL 130,210 m 0.42858 m 37500 µg 481.9x10-9 cm 37.446 m 49.0385 L 0.00794 mg 0.006008 g 825,066 mm Calculations with Significant Figures https://tinyurl.com/3x6ea5r8 4. Perform the following calculations. Your answer should be written in the correct number of significant figures and include units. a. b. c. d. e. f. g. h. i. j. 12 g + 0.677 g + 86.33 g (355.78 g) / (0.056 g) 97.34 mL – 34.1 mL 0.14 mol x (6.02x1023 atoms/mol) 1.26𝑥10−3 𝑘𝑔 (3.2𝑚 + 10𝑚 + 8.9𝑚)(4.3𝑥10−6 𝑠) 323 X 0.0002 4008 ÷ 2.763 66.3 + 27.008 67.45 – 12.2 4.1 X 6.22 X 5.478 Metric Conversions & Dimensional Analysis SI Units & Conversion Factors Dimensional Analysis https://tinyurl.com/yzamkr6k https://tinyurl.com/t6h3tmr5 https://youtu.be/d_WfCwJW0Og 5. Show work using dimensional analysis. No work = no credit even if answer is correct. Follow significant figures and rounding rules unless the number of significant figures is specified. Include units where appropriate. a. How many hours are in a week? Report your answer to three significant figures. b. Find the number of centimeters in 1.00 x 102 yards. (1 yd = 3 ft, 1 ft = 12 in, 2.54 cm = 1 in) c. If Jules Verne expressed the title of his famous book, https://tinyurl.com/2p8u9v27 d. e. f. g. h. i. https://tinyurl.com/2p8v8upr j. Twenty Thousand Leagues under the Sea in basic SI units, what would the title be? Round your answer to three significant figures. (1 league = 3.45 mi, 1 mi = 1609 m) How many µL are present in 250 mL of H2O? Wavelengths are often represented in nm. What is the diameter of a helium (He) atom in nm if it is equivalent to 1.0x10-13 km? The area of a rectangular room has a length of 10.5 m and a width of 4.50 m. What is this area in m2? In cm2? The acceleration of a sphere is determined to be 9.52 m/s2. What is the acceleration in km/min2? I have a bar of gold that is 7.0 in 4.0 in 3.0 in. The density of gold is 19.3 g/cm3. The price of gold currently is $1,945.94 per ounce. How much is my gold bar worth? If the RDA for vitamin C is 60 mg per day and there are 70 mg of vitamin C per 100 g of orange, how many 3 oz. oranges would you have to eat each week to meet this requirement? Owls generally maintain territories of 3 acres. How many owls could live in a large wooded area of 20 hectares? (1 hectare=1 sq. dekameter=100 m2= 2.47 acres) Classification of Matter, Properties, and Change Classification of Matter Physical / Chemical Properties & Physical / Chemical Change https://tinyurl.com/2366nc9x https://tinyurl.com/np9fd5wf 6. Identify each as substance (S) or a mixture (M). Then label as element (E), compound (C), solution (S) or heterogeneous (H) a. b. c. d. e. f. g. h. Italian salad dressing Copper wire Aluminum nitrate Hydrochloric acid 98% isopropyl alcohol Carbon dioxide Sodium bicarbonate Salt water 7. Identify each as physical 8. Identify each as physical property (PP) or chemical property (CP). change (PC) or chemical change (CC). a. b. c. d. e. f. g. h. a. b. c. d. e. f. g. h. Flammability Density Ability to react with oxygen Tarnishes Melting point Sublimation point Solubility Odor NaCl Dissolves Iron rusts Ice melts Alcohol evaporates Wood rots Paper towel absorbs water Pancakes cook An apple is cut Atomic Structure & History History https://tinyurl.com/mpaawuav 9. Research these two models of the atom: the Böhr (planetary) model and the electron cloud model. Write a paragraph(s) describing both (you may use diagrams), discuss which one is more accurate, and also discuss why the less accurate model is still used. Atom Structure Electron Configurations https://tinyurl.com/yf8s4pnk https://tinyurl.com/2dcu5ym4 10. For each give number of protons (p+), number of electrons (e-), number of neutrons (n0) a. b. c. d. 79Br126Mg2+ 112Cd 222Rn 11. Write the long-hand electron configurati on a. b. c. d. Cu2+ Ar Mg S2- 12. Write the short hand (noble gas) configurati on a. Sb3b. Nh c. Rn d. Fr+ Periodic Table - Structure & Trends Organization of the Periodic Table Periodic Trends https://tinyurl.com/2v5vvve5 https://tinyurl.com/mr2928w3 https://tinyurl.com/54naaatt 13. Which groups (vertical column) of elements represent the most reactive metals and the most reactive nonmetals? 21. Order the following elements in order of increasing electronegativity 14. Which group of elements is chemically Ca, S, C, Li, Mg inert? 15. Which types of elements form positively charged ions (cations)? 22. Order the following elements in order of increasing atomic radius 16. Which types of elements form Na, Ar, Zn, Se, Sr negatively charged ions (anions)? 17. Where on the Periodic Table will you find the elements with the most metallic character? 18. Where on the Periodic Table will you 23. Order the following elements in order of increasing ionization energy find the elements with the most nonmetallic character? 19. How do the periods (horizontal rows) of the Periodic Table correspond to the number of electron energy levels for a certain element? 20. How do the groups of the Periodic Table correspond to the number of valence electrons for a certain element? *(note: this rule will not O, Cr, P, Kr, Br 24. Of the following element sets state which has the higher value a. b. c. d. 25. Rank the following elements by increasing atomic radius: carbon, aluminum, oxygen, potassium. 26. Rank the following elements by increasing electronegativity: sulfur, oxygen, neon, aluminum. 27. Why does fluorine have a higher ionization energy than iodine? 28. Why do elements in the same family generally have similar properties? 29. What trend in atomic radius occurs down a group on the periodic table? What causes this trend? Atomic radius: Mg S Ionization energy: Y Co 30. What trend in ionization energy occurs across a Electronegativity: I Cl 2+ period on the periodic Ionic radius: Sr I table? What causes this apply to the transition metals.) trend? Nomenclature https://tinyurl.com/mrybsf6r Ionic Compounds Covalent (Molecular) Compounds https://tinyurl.com/yf2ck2z9 Acids https://tinyurl.com/58xnxp76 https://tinyurl.com/mr47a9fm 31. Name the following compounds: 33. Name the following compounds: a. K2O a. SO3 b. MnCl2 b. N2O5 c. Cu2O c. NH3 d. ZnCO3 d. PCl5 e. BaCr2O7 e. P4S5 f. Fe(CN)3 g. Mg3(PO4)2 32. Write formulas for the following compounds: a. Lithium fluoride b. Calcium phosphate c. Silver sulfide d. Aluminum sulfate e. Chromium (III) phosphide f. Lead (IV) hydroxide g. Ammonium sulfite h. Nickel (II) hypochlorite i. Rubidium chromate 34. Write formulas for the following compounds: a. b. c. d. e. Antimony tribromide Carbon disulfide Nitrogen trifluoride phosphorus triiodide Dinitrogen trioxide 35. Name the following acids: a. b. c. d. e. HClO2 HNO3 H2SO4 HCl H2SO3 36. Write formulas for the following acids: a. b. c. d. e. Hydrosulfuric acid Nitrous acid Carbonic acid Hydrocyanic acid Chloric acid Chemical Bonding & Intermolecular Forces Ionic Compounds Covalent Compounds Intermolecular Forces https://tinyurl.com/2x4dbzyp https://tinyurl.com/mrys8vm4 https://tinyurl.com/m5cfmvcs https://youtu.be/S_k0kr2eZSQ 37. Identify the type of bonding AND justify your answer. a. b. c. d. e. f. g. h. Sulfur & Hydrogen Sulfur and cesium Chlorine and bromine Calcium and chlorine Copper and sulfur NaCl MgBr2 NBr3 38. Identify the strongest intermolecular force for each pair AND justify your answer: a. Methane and Methane (CH4) b. Ethanol and Ethanol c. Water and Water d. NH3 and NH3 e. HCl and HCl f. CO2 and CO2 g. CH2Cl2 and CH2Cl2 Chemical Reactions Types of Chemical Reactions Balancing Chemical Equations https://tinyurl.com/bdfbvr47 https://youtu.be/e_C-V5vJv80 39. Identify the type of chemical reaction represented by each equation below: 40. Balance each of the following skeleton equations: a. __Fe + __P4 � __Fe3P2 a. A + B → AB b. __Ca + __H2O � __Ca(OH)2 + __H2 b. AB → A + B c. __Ba(OH)2 + __H3PO4 � __Ba3(PO4)2 + __H2O c. A + BC → B + AC d. __(NH4)2CO3 + __Al(ClO3)3 � __Al2(CO3)3 + __NH4ClO3 d. AB + CD → AD + CB e. ____NH4NO3(s) → ____N2(g) + ____O2 (g) + ____H2O(g) e. CxHyOz + O2 → CO2 + H2O f. ____ C5H10O2 (l) + ____O2(g) →____H2O(g) + ____CO2 (g) f. 2Na(s) + Cl2(g) → 2NaCl(s) g. 2NaBr(aq) + Cl2(g) → 2NaCl(s) + Br2(l) h. 3Na3PO4 + 3KOH → 3NaOH + K3PO4 i. C3H6O + 4O2 → 3CO2 + 3H2O j. CaCO3 → CaO + CO2 Mole Conversions & Stoichiometry Molar Mass & Mole Conversions Stoichiometry Limiting Reactants https://tinyurl.com/vm4rmfrk https://tinyurl.com/4yrsx6j2 https://tinyurl.com/29h4wepb https://tinyurl.com/47wubv47 https://tinyurl.com/5ddnvv32 https://tinyurl.com/y3ymsdyz https://tinyurl.com/ch5cw8k5 41. Calculate the molar mass of each of the following: a. b. c. d. e. Ca(OH)2 CH3COOH NH4C2H3O2 Pb(CO3)2 Al(ClO3)3 42. Convert each of the following: a. 500 atoms Fe to moles b. 87.2 g Pb(CO3)2 to formula units c. 4 mol C6H12O6 to molecules d. 452 g Argon to moles 2C2H2 + 5O2 → 4CO2 + 2H2O 43. Complete the following calculations based on the given chemical reaction. 2 BF3 + 3 H2 → 2 B + 6 HF 44. Use the equation above to answer the following questions: a. 13.7 g C2H2 react. How a. If 0.10 mol of BF3 is many grams of CO2 produced? b. How many grams C2H2 are needed to completely react with 18.5g O2? c. How many moles of water are produced when 32g O2 react? reacted with 0.25 mol H2, which reactant is the limiting reactant? b. What is the maximum amount (in grams) of HF that can be produced from these amounts? c. If 3.8 g HF are produced, what is the percent yield.