Review Chapter #1 · · · · · · · · · Chapter #2 Matter: elements and compounds Definitions etc organization of elements Periodic table Periodic Law Modern Periodic Table, Families etc., group, period Early theories of atomic structure, Dalton, Thomson, Rutherford etc Gold Foil Experiment, what it showed, explanation for structure, Atomic mass, Atomic number, electrons, neutrons and protons Modern atomic theory Bohr, line spectrums, excited and ground states Trends in Periodic table, Atomic radius, Ionic Radius, First and Second Ionization Energies, Electronegativities, Electron Affinity · · · · · · · · · Bonding Classifying compounds Ionic bonding transfer of electrons stable octet Properties of ionic compounds Representing ionic bonds, electron dot diagram, Lewis diagrams Covalent Bonding sharing of electrons Stable octet Coordinate Covalent bonds Electro negativity Polar bonds and Polar molecules Intermolecular forces Van der Waals forces ( dipole - dipole and London forces) hydrogen bonding nomenclature, ionic , molecular, polyatomic compounds, acids · · · · · Chemical Reactions. Chemical and physical changes Kinetic molecular theory and chemical changes, collision -reaction theory Word, chemical equations, Balanced chemical equations Types of reactions, Combustion, Synthesis, Decomposition, Single/double displacement reactions Solubility and double displacement reactions, Solute and solvent, Precipitates, Predicting precipitates, solubility chart Chapter #3 Chapter #4 · · Chapter #5 · · Chapter #6 · Chapter #7 Law of Definite Proportions The mole and molar mass, Avogadro’s number. Moles ( n) = m( mass) / M ( molar mass) Percent Composition, Empirical and Molecular formulas Quantities in Chemical Reactions Balancing Equations, Mole ratios Stoichiometry, Limiting and excess reactants, % yield mass==> moles ==> Mole Ratio ==> moles ==> mass Solutions Defining solutions, homogeneous and heterogeneous mixtures properties of solutions, intra molecular intermolecular forces Ionic compounds in water, dissociation Concentrations of solutions, c = n/v Solution preparation, dilutions and prep from solid · · Solubility Saturated solutions etc,, solubility Solubility categories Reactions in solution, net ionic equations · · · Acids and bases Properties., strong and weak acids and bases pH of solutions, measuring pH Acid base titrations, Chapter #8 Chapter #9 Chapter #10 Gases States of matter and KMT Gas Laws, Charles, Boyles, Combined, Ideal Gas law More Gas laws Gas stoichiometry. Review Worksheet #1 Chapter #1 Nature of matter There are not many mathematical concepts within this chapter. Work through the concepts for full understanding. Matter, Atoms,Theories, periodic table, trends etc Chapter #2 Classifying compounds, properties etc. Ionic and Covalent Covalent and Ionic bonding. Basic concepts Electro negativity and polar bonds and molecules Nomenclature Names: KBrO3 SnO Li2SO4 Ca3N2 HgCO3 Ag2S04 CoCl2 Al2(SO4)3 CuSO4*5H2O NH4OH KI Ba(C2H3O2)2 H2S HNO3 N2O4 CH4 NaOH SbCl5 FeO ZnCO3 H2O H2O2 K2SO4 Sodium Iodate Zinc oxide Tin (IV) sulphate ammonium hydroxide Iron ( III) carbonate carbon disulphide magnesium nitrate barium chlorate ammonia phosphoric acid lead (II) acetate phosphorous pentabromide dinitrogen oxide barium carbonate Hydrochloric acid Potassium hydroxide vinegar Tin (II ) oxide Lithium chlorate Aluminum sulphide WORKSHEET #2 Chapter #3 Chemical Reactions Mechanism for reactions and change, KMT and collision theory, evidence Representing change, word and chemical formula equations Balanced chemical equations Balance the following equations: Cu + HNO3 ===> MnO2 KClO3 ====> SO2 KCl H2SO4 Ca3(PO4)2 C4H10 + HCl ===> + H2S ===> NaCl + + SiO2 + O2 Cu(NO3)2 + H2O + H2 O + MnCl2 + NO + H2O + Cl2 O2 S + MnO2 ===> Na2SO4 + MnSO4 + C ====> CaSiO3 + CO ====> CO2 + + H2 O + Cl2 + P4 H2 O Butane burns in the presence of oxygen to produce two well known compounds. Write out balanced chemical equation for this reaction Types of reactions. Be able to examine various reactions and classify as to a name of type. Solubility: Silver nitrate and Sodium Chloride solutions were mixed together. Write out the balanced chemical equation. Write out the total ionic equation Write out the net ionic equation for this reaction. Indicate whether or not a precipitate was produced and its identity. WORKSHEET #3 Chapter 4&5 & 9&10 Stoichiometry and gas laws Law of definite proportions The mole and molar mass Avagadros number Conversions with moles and molar mass and mass. Percentage composition Empirical and molecular formulas Percent Yield. Mole Ratios===> Mass==> moles===Mole Ratio==> Moles===> Mass Limiting and excess reactants, conduct stoichiometric analysis to determine #1 a) b) C) Zn ( s) + HCl ===> ZnCl2 ( aq) + H2 (g) What mass of zinc is needed to produce 20.0 L of hydrogen gas at STP? what mass of zinc is needed to produce 20.0 g of hydrogen? what mass of zinc is needed to react with 100.0 g of hydrochloric acid? #2 a) b) c) d) Cu(s) + 4HNO3 ( aq) ===> Cu(NO3)2 (aq) + 2NO2( g) + 2H2O (l) What mass of copper is required to produce 100 L of nitrogen dioxide at 25 degrees C and 105 kPa> What mass of copper is required to produce 100 g of copper (II) nitrate? what mass of nitric acid will react with 100 g of copper? what mass of water is produced at the same time as 100 g of nitrogen dioxide? #3 a) b) c) 2S(s) + 3 O2 ( g) + 2H2O ( l) ===> 2 H2SO4 (l) What mass of sulphuric acid can be manufactured using 100 L of oxygen at STP? what mass of sulphur is needed to produce 1.o Kg of sulphuric acid? what volume of oxygen at 27 degrees c and 110 kPa will react with 64.o g of sulphur? #4 If a 1.00 L balloon at 101.3 kPa is subjected to a new pressure of 225 kPa, what will its new volume be? To what temperature must 1.00 L of gas at 0degrees C be heated to increase its volume to 2.4 L 1.00L of a gas at 25 degrees Celsius and 110 kPa has a mass of 2.40 g. Calculate the molar mass of this gas. Calculate the volume of a) 24g of CH4 at STP b) 20.0 g of NH3 at 25 degrees C and 98 kPa #5 #6 #7 #8 Calculate the mass of a) 26.5L of CH4 at 25 degrees C and 200 kPa b) 1.00 L of air ( molar mass = 28.8 g/mol) at STP #9 3.5 L of a gas at 20 degrees C and 118.4 kPa has a mass of 6.0 g . What would be the mass of 2.6 L of the same gas at 0 degrees C and 104 kPa WORKSHEET #4 Chapters 6,7 & 8 Solutions, Solubility and Acids & Bases Solutions, definitions, properties, types, Explaining mixtures, ionic compounds in water, water the universal solvent, Concentrations, water quality, prep of solutions, dilutions Solubility, effects of temp. precipitates more net ionic equations stoichiometry with solutions. Acids and bases properties, strong and weak pH and calcs. Neutralizations titration #1a) Stock nitric acid was analyzed and found to have a density of 1.41 g/mL. molar concentration of this solution? Convert g - moles Convert mL ==> L #1b) how much of this stock solution is needed to produce 2.00 L of 0.25 mol/L nitric acid solution? #2 Write equations for the dissociation or ionization for the following compounds. KCl ==> H2SO4 ==> Ba(NO3)2 ==> Ca3(PO4)2 ==> #3 Write net ionic equations for the formation of precipitates produced when the following pairs of solutions react. sodium hydroxide and aluminum sulphate calcium nitrate and potassium carbonate lithium sulphide and iron (III) nitrate a) b) c) #4 A) B) C) #5 What is the In a titration experiment it is found that 25.00 mL of a base solution is neutralized by 15.6 ml of 0.10 mol/l HCl solution. how many moles of acid are used? how many moles of base are used? if , in addition , it is known that the 25 ml sample of base contains 0.05 g of base , what is the molar mass of the base? a) b) Describe in reasonable detail showing your calculations, how you would prepare the following solutions. 1.00L of 0.05 mol/L KOH starting with pure KOH solid 0.500 L of 0.25 mol/L HCl starting with 12.0 mol/l HCl #6 a) b) c) Complete the following neutralization equations NaOH + HCl ==> H2SO4 + KOH ===> HNO3 + Ba(OH)2 ===> WORKSHEET #5 #7 Chapter 6-8 continued What mass of KOH is needed to neutralize100 ml of 0.20 mol/L HCl? #8 What volume of 0.25 mol/L HCl is needed to neutralize 30.0 ml of 0.1 mol/L Ca(OH)2 #9 a) b) c) 25 ml of 0.20 mol/L KOH was titrated against various acid solutions. The volumes of acid solutions used are listed below. Find the molar concentrations of each acid solution 10.0 ml H2SO4 20.0 mL of H3PO4 15 mL of HCl #10 A) B) C) What is the molar concentration of each of the following? 20.0 g of KOH in 500 ml 25.0 g of NaCl in 300 ml 50 ml of 12 mol/L HCl added to 350 ml water #11 A) B) How many grams of solute in : 50 mL of 0.20 mol/L KCl 100 ml of 0.002 mol/L CH3COOH #12 An acid solution contains 0.50 g of acid in every 25 ml of solution. 120 ml of 0.25 mol/L KOH is needed to neutralize 25 ml of the acid solution. Assume 1:1 ratio of acid to base the molar concentration of the acid solution the moles of acid in 25 ml of the acid solution the molar mass of the acid a) b) c) #13 On day in hallowed halls of the Wood, a piece of evidence to a crime appeared. It was a gigantic pellet of sodium hydroxide. The whole solution to the crime depended upon the mass of the pellet. Sadly the fairy balance beam wasn’t working , but the fairy Godmother remembered her chemistry and knew she could find the mass of the pellet by conducting various laboratory experiments. She found that when she added 18356 mL of 0.100 mol /L HCl to a solution made by dissolving the pellet in a sample of water, the indicator phenolpthalein changed from pink to clear. What was the mass of the pellet? Answers KBrO3 SnO Li2SO4 Ca3N2 HgCO3 Ag2S04 CoCl2 Al2(SO4)3 CuSO4*5H2O Potassium Bromate Tin (II) oxide Lithium Sulphate Calcium nitride Mercury (II) carbonate Silver Sulphate Cobalt (II) chloride Aluminum Sulphate Copper (II) sulphate penta hydrate NH4OH KI Ba(C2H3O2)2 H2S HNO3 N2O4 CH4 NaOH SbCl5 FeO ZnCO3 H2O H2O2 K2SO4 Sodium Iodate Zinc oxide Tin (IV) sulphate ammonium hydroxide Iron ( III) carbonate carbon disulphide magnesium nitrate barium chlorate ammonia phosphoric acid lead (II) acetate phosphorous pentabromide dinitrogen oxide barium carbonate Hydrochloric acid Potassium hydroxide vinegar Tin (II ) oxide Lithium chlorate Aluminum sulphide Ammonium Hydroxide Potassium Iodide Barium Acetate Hydrogen Sulphide Nitric Acid dinitrogen tetroxide Methane Sodium hydroxide Antimony (V) chloride Iron (II) oxide Zinc Carbonate dihydrogen oxide dihydrogen dioxide or Hydrogen peroxide Potassium sulphate Na IO3 ZnO Sn(SO4)2 NH4OH Fe2(CO3)3 CS2 Mg(NO3)2 Ba(CLO3)2 NH3 H3PO4 Pb(C2H3O2)2 PBr5 N2O BaCO3 HCl KOH HC2H3O2 SnO LiClO3 Al2S3 Worksheet #2 Chapter 3 chemical Reactions 3Cu + 8 HNO3 ===> 3 Cu(NO3)2 + 4H2O + 2NO MnO2 + 4HCl ===> MnCl2 + 2 H2O + Cl2 2 KClO3 ====> 2 KCl + 3 O2 SO2 + 2 H2S ===> 2 H2O + 3 S 2 NaCl + 2 H2SO4 + MnO2 ===> Na2SO4 + MnSO4 + 2 H2O + Cl2 2 Ca3(PO4)2 + 6 SiO2 + 10 C ====> 6 CaSiO3 + 10CO + P4 AgNO3 + NaCl ==> AgCl + Ag+ + NO3- + Na + + Cl- ===> AgCl Ag+ + Cl- ===> AgCl Precipitate is Silver chloride. NaNO3 + Na + + NO3 - Worksheet #3 chapters 4,59,10 #1a) 58.1 g B) 646.5 g C) 88.8 g #2a) 134.62 g B) 33.86 g C) 396.9 g D) = 39.06g #3a) 294g B) 326.5 g C) 67.9 L #4 = 0.45 L #5= 655.2 K or 928.2 C #6 #7 a) 33.6 L B) 29.82 L #8a) 34.24 g B) 1.29 g #9 Molar mass = 35.3 g/mol Mass = 4.24 g #1a) #2a) Worksheet #4 16 mol/L B) K+ + Cl- Chapter 6,7,8 0.031 L b) 2H+ + SO4 -2 +2 c) Ba + 2 NO3 -1 d) 3 Ca+2 + 2 PO4 -3 #3 Al +3 + 3OH-1 ==> Al(OH)3 (s) Ca +2 + CO3 -2 ==> CaCO3 (s) 2Fe+3 + 3 S-2 ==> Fe2S3(s) #4a) 0.00156 B) 0.00156 #6a)NaCl + H2O b)H2O + K2SO4 c)H2O + Ba(NO3)2 C) 32.05 g/mol WORKSHEET #5 #7=1.12 g #8 =24 ml #9a) 0.25 mol/L b) 0.08 mol/L c) 0.33 mol/L #10a) 0.72 mol/L b) 1.4 mol/L c) 1.5 mol/L #11a) = 0.745 g B) 0.012g #12a) 1.2 mol/L b) n = 0.03 c) 16.7 g/mol