CHEMISTRY 1212 FINAL EXAM STUDY GUIDE SPRING 2015 Sections 28 54 Tuesday April 28 Sections 1 27 Wednesday April 29 The Final Exam is given DURING your lab time and is cumulative This is a Lab Practical Exam open notebook with different stations Some stations require you to do part of an experiment and others may give you hypothetical data At all stations you must interpret results either in the form of questions or calculations You will have 10 minutes per station and 8 10 stations You may only use your PERSONAL lab notebook for the Final Exam No Lab Manual NO ATTACHMENTS No handouts No graded copies of reports quizzes You will need pencil or pen and a scientific non graphing calculator We will NOT provide calculators or allow sharing of calculators No phones PDA s computers etc are allowed The BEST way to study for the Final Exam is to a Review the pre and post lab questions for each experiment b Review the quizzes for each experiment c Review how the data observations are used in a calculation or are interpreted d If needed review the overheads notes for each experiment on Moodle Exp Review of the Experiments performed this semester For ALL experiments you should have written in your lab notebook 1 Chemical Alert Data for ALL chemicals used and 2 ALL balanced chemical equations Review the Laboratory Safety on pages vii xii 1 2 3 4 5 6 Review the definitions and how to determine the density miscibility and solubilities of compounds Be able to calculate the theoretical yield and percent yield Know how experimental errors or incomplete reactions affect the percent yield Know the different types classes of Chemical Reactions Be able to write a complete balanced equation from observations and classify the type of reaction Be able to titrate a fruit juice solution to its endpoint and calculate the molarity from a standardization titration and amount of citric acid mL of juice Know how experimental errors in titration would affect results Be able to titrate a solution to its endpoint and calculate the molarity of DCP from a standardization titration to calculate the mg of Vitamin C and to determine how many mL of juice is needed to meet the adult DRI Know how experimental errors in titration would affect M of DCP or mg of Vitamin C Be able to identify determine which reagent is the Limiting Reagent and then calculate the theoretical and percent yields Know how experimental errors would affect the percent yield 7 8 9 Recall the Ideal Gas Law Dalton s Law of Partial Pressures Be able to do all calculations related to this experiment Know how to set up the apparatus and take measurements from this experiment Know how errors affect calculations results Be able to measure conductivities of aqueous solutions be able to classify compounds and determine the degree of dissociation based on their conductivities Know how to find the mg of aspirin in a tablet molarity of aspirin in a concentrated and dilute solutions and how to use the calibration plot Know how errors affect concentration determinations and how to make solutions use spectrophotometer 10 Be able to calculate the molality of a solution and its theoretical freezing pt Know the relationship between molality and freezing point 11 Be able to determine the pH of a compound using a pH probe Be able to do pH calculations and to rank solutions by increasing or decreasing acidity or basicity Know the shape and important points of a titration curve 12 15 Be able to identify cations from ALL of the Qual Groups in an unknown from data sheets or experimental data Be able to fill in inferences chemical formulas on a data sheet and to write rationales on the identity of an unknown solution Be able to choose a reagent to distinguish between cations like pre and post lab questions 16 Be able to calculate q specific heat and Hrxn from experimental data Understand the basic principles of calorimetry and how errors would affect results 17 Be able to interpret explain observations in terms of Le Ch telier s principle concerning an equilibrium system when adding or removing chemicals or heat 18 Be able to determine the rate of reaction individual orders of reaction rate constant and the rate constant expression Rate Law from experimental or described data 19 Be able to determine which species is the oxidized species reduced species oxidizing agent and or reducing agent from experimental or described data 20 Be able to calculate theoretical and percent yields from experimental or described data Be able to describe what recrystallization does and its affect on the yield SHOW ALL YOUR WORK CALCULATIONS ON THE FINAL TO RECEIVE CREDIT Grade Notebook Ave Quiz Ave Midterm Exam x 0 35 Final Exam x 0 35 The grading scale as stated in the syllabus 90 0 100 A 70 0 79 9 C 80 0 89 9 B 60 0 69 9 D If you missed 1 lab you need to come to the Alternate Lab and do Exp 21 This experiment will be counted instead of the zeroes from the missing quiz and report You may want to include some sample calculations observations including proper citation for the missing experiment in your lab notebook If you missed more than 1 experiment the deadline for submitting documentation to your instructor is the Alternate lab day If your absence for the 2nd or more absence is excused your average will be calculated with one less experiment If no documentation is provided or it is deemed unexcused then these scores will remain zero in the calculation of your averages