IB CHEMISTRY SL. SUMMER REVIEW Mrs. Coronado IB Chemistry SL

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1 IB CHEMISTRY SL SUMMER REVIEW Mrs. Coronado Name: IB Chemistry SL Prior to beginning the year of IB Chemistry you must complete the following exercises in review from your past experiences in Chemistry. The week that students return to classes for the school year a quiz will assess your prior knowledge. Students are required to have this assignment completed AND pass the quiz. Students are encouraged to retain materials from past chemistry courses in order to aid in their preparation for higher level content seen during the upcoming school year. It is also encouraged that this review be completed in small portions throughout the summer vacation and not all in one night the day before classes resume. Polyatomic Ions Name the following polyatomic ions and commonly name covalent molecules. (Must be memorized Make flash cards) HSO 4 2 SO 4 NO 3 3 PO 4 OH 2 CrO 4 Cr 2O NH 4 ClO 3 ClO 4 2 CO 3 SCN HCO 3 MnO 4 CN HCl H 2SO 4 NH 3 CH 4 HNO 3 C 2H 3O 2 or CH 3COO HBr HI H 3PO 4 HClO 4

2 Lab Apparatus Name the following lab apparatus that will be used throughout the school year and state its function. (Must be memorized) Name: Name: Name: Name: Name: Name: Name: Name: Name:

3 Name: Name: Name: Name: Name: Name: Name: Name: Name: Name: Name: Name:

4 The Model of the Atom What was John Dalton s most important contribution to the model of the atom? What experiment was carried out by JJ Thomson that lead to the discovery of electrons? How did this experiment give conclusive evidence to the presence of elections? What model of the atom was presented by JJ Thomson after these findings? (include a diagram) Below is a diagram of the Rutherford gold foil experiment. Describe this experiment and the major contribution to the model of the atom that was based on the observation of this phenomenon. Include a diagram of the model that was established after these findings.

5 Complete the following table: Particle Relative Charge Relative Mass Location Proton Neutron Electron Define the term Isotope: Naming and Writing Compounds Name the following compounds and identify as Ionic or Covalent: SF 6 NaCl MgCl 2 PH 3 Ca 3(PO 4) 2 SeBr 2 N 2O 4 Fe(CH 3COO) 2 NI 3 (NH 4) 2SO 4 KMnO 4 NiCl 3 Ti(NO 3) 3 HgBr ZnCl 2

6 Sig Figs Determine the number of sig figs in the following numbers. Indicate which digits are significant. 5,000 5,000. 5, x x x 10 9 Stoichiometry 2 NH CuO N Cu + 3 H 2O How many moles of CuO are required to produce moles N 2? How many moles of NH 3 are required to react with 3.45 moles CuO?

7 Ag (s) + H 2S (g) + O 2 (g) Ag 2S (s) + H 2O (l) (Balance first). How many grams of silver will react with 34.2 g of hydrogen sulfide? If 50.0 L of water are produced, how many liters of oxygen would have reacted at STP? (Density of water = 1 g/ml) Limiting Reactant/Percent Yield Ca(OH) HCl CaCl H 2O If you have spilled 6.3 mol of HCl and put 2.8 mol of Ca(OH) 2 on it, which substance is the limiting reactant? B 2H O 2 B 2O H 2O If 34.5 g of B 2H 6 reacts with 58.6 g of O 2, which is the limiting reagent? What is the theoretical yield B 2O 3?

8 If the actual yield of B 2O 3 is 5.61 g, what is the % yield? (from the previous page) What is the % error? How much of the nonlimiting reagent is left over? How much of the nonlimiting reagent is left over? (in moles) Gas Laws Convert the following temperatures to K Convert the following temperatures to o C 34.5 o C 273 K 56 o C 56 K 7500 o C 300 K

9 A sample of nitrogen gas has a volume of 365 cm 3 and a pressure of kpa. What volume would the gas occupt at 88.2 kpa if the temperature remains constant? A 9.98 dm 3 sample of hydrogen gas is collected at 38.8 o C. Find the volume of the gas at 39.9 o C if pressure remains constant. A sample of gas has a volume of 215 cm 3 at 23.5 C and 84.6 kpa. What volume will the gas occupy at STP 495 cm 3 of oxygen gas and 877 cm 3 of nitrogen gas, both at 25.0 C and kpa, are injected into an evacuated 536 cm 3 flask. Find the total pressure in the flask, assuming the temperature remains constant.

10 Determine the molar mass of a gas that has a density of 2.18 g/l at 66 C and 720 mmhg. A ml tank contains 3.0 mol of N 2, 2.0 mole of O 2 and 1.0 mol of CO 2 at 25 o C. Calculate the total pressure of the mixture. Calculate the partial pressure of each. Periodic Table Trends What is the relationship between elements present in the same column of the periodic table? What is the relationship between elements present in the same row of the periodic table? Describe 3 major physical properties that differentiate metals from nonmetals

11 Describe 3 major chemical properties that differentiate metals from nonmetals Describe the trend in atomic radius as you travel from left to right on the periodic table. What is the major contribution to this trend? Describe the trend in ionization energy as you travel from left to right on the periodic table. What is the major contribution to this trend? Describe the trend in electronegativity as you travel from left to right on the periodic table. What is the major contribution to this trend? Rank the following in order of increasing Ionic radius: Na, Mg, Si, P, C, Cl, Se, Br, and N.

12 Complete the table Formula Lewis Dot Lewis Dot Structures/Molecular Geometry Molecular Geometry Polarity IMF Mp/Bp NH 3 BH 3 I 3 SO 2 PO 4 3 TeI 6 Solutions If 6.78 grams of NaNO 3 is dissolved in water to form 65.0 ml of solution what is the concentration? What volume of solution can be made from dissolving 8.09 grams of LiOH to form a 0.25 M concentration of base? What mass of sodium phosphate is necessary to form ml of 2.45 M solution?

13 A 4.5 M solution of acid is diluted from 64.5 ml to form 1.5 L. What is the new concentration? What volume of 6.00 M solution is necessary to mix 2.5 L of 0.50 M solution? Write the net ionic equation for the following reactions Ba(OH)2 + HClO3 Cs2CO3 + CaCl2 NH4Cl + AgNO3 Li3PO4 + Ca(ClO3)2