100 10449 120 Chemistry I (HON) 519 130 Unit 3 Mass Relationships in Chemistry 140 150 11-12 160 170 180 210 211 212 213 214 215 216 220 221 222 223 224 225 226 230 231 232 233 234 235 236 240 241 242 243 244 245 246 250 251 252 253 254 255 256 300 1. Does the atomic mass given on the periodic chart take into account all of the naturally occurring isotopes? 300 2. What is the advantage to chemists of using the mole? 300 3. Can the formula of a compound be determined by chemical analysis and how? 300 4. Balanced equations provide a recipe for a reaction. Can these balanced equations be used to determine measurable amounts of reactants and products in the lab? 300 5. How can limiting reagents be used to determine the theoretical yield of product. 300 6. Can the percent yield of product be determined from laboratory data? 400 Isotope masses 400 Percent abundance problems for isotopes 400 Mole problems 400 Percent composition 400 Determining empirical and molecular formulas from lab analysis data 400 Balancing equations 400 Five simplest types of reactions: synthesis, decomposition, single or double displacement and combusion 400 Use of the activity series for metals or the periodic chart for nonmetals to predict whether a single displacement reaction will occur and what the products will be 400 Stoichiometry 400 Limiting reagents 400 Percent yield 500 Students will develop the ability to: 500 Determine abundance of unknown isotopes or average atomic mass from isotope abundance data 500 Effectively utilize the mole road map to complete all mole calculations: mass, moles, volume at STP. representative particles and subparticles 500 Separate a mixture by fractional crystallization UCONN lab #3 500 Determine the solubility of an ionic substance in any quantity of solvent using data from a solubility curve 500 Calculate the percent composition of any compound 500 Establish an empirical formula and molecular formula from lab analysis data in text problems 500 Complete a lab activity to determine the number of waters of hydration in a copper compound and the ratio of copper to chlorine atoms in the compound in order to give the complete formula of the hydrated crystal UCONN lab #4 500 Balance chemical equations using the lowest set of coefficients 500 Indicate the meaning of any symbol used in a balanced equation such as (aq) 500 Indicate which class of reactions a chemical equation represents 500 Use an activity series or the periodic chart to determine if a single replacement reaction will occur and what the products will be 500 Use stoichiometry to calculate any quantity in a chemical reaction 500 Be able to determine which reactant is limiting given two starting amounts in a chemical reaction 500 Determine the amount of product which will be formed using the limiting reagent 500 Calculate the amount of excess reagent remaining when the reaction is complete 500 Determine the theoretical yield in a reaction 500 Calculate the percent yield based on the actual yield in the lab 500 Determine the amount of starting material needed to produce a required actual yield of a product 600 Practice with isotope abundance problems 600 Practice using the mole road map to complete all mole calculations 600 Interpret solubility curves and extract data 600 Use data from solubility curves to calculate quantity of solvent which can dissolve in a given amount of solute at any temperature or the amount of solvent needed to dissolve a given amount of solute 600 Coop groups--peer edit Advanced Study Assignment for experiment #3 done the previous night for homework 600 Separate a mixture of 3 substances using fractional crystallization UCONN lab #4 600 Determine the quantity of a solute remaining in a solution using data from a spectrophotometer and a graph 600 Practice solving empirical and molecular formula problems using lab analysis data including combustion analysis problems 600 Coop groups--Peer edit Advanced Study Assignment for lab #4 done the previous night for homework 600 Completion of a lab activity in which students will remove the waters of hydration from a copper compound and then isolate the copper through a single replacement reaction and vacuum filtration. They will then determine the complete formula of this hydrated crystal 600 Practice solving waters of hydration problems 600 Practice balancing equations 600 Exposure to all of the symbols used in balanced equations such as (aq) or (g) 600 Identify which type of reaction an equation represents: synthesis, decomposition, single or double displacement or combustion 600 Use of the activity series or periodic chart to determine if a single replacement reaction will occur and what the products will be 600 Practice using stoichiometry to determine quantities in chemical reactions 600 Determination of which reactant is limiting, the amount of product that will be formed and the amount of excess reactant that will remain 600 Practice with all varieties of percent yield problems 700 Mole problems quiz--students must demonstrate mastery of mole problems by scoring at least a 90% on this quiz. They must keep taking mole problem quizzes until they do score a 90% 700 Advanced study assignments 700 Lab reports with error analyses 700 Homework problems 700 Take-home test: multiple choice, fill in the blank, problems and essays 700 UCONN exam for chapters 1-3: fill in the blank, problems and essays