CHEM 1212 Final Exam Study Guide Final Exam Dates Times Fall 2024 You will take the Final Exam in the LSU Testing Center during the following testing window Monday December 2nd at 9 00 a m through Friday December 6th at 8 30 p m You must schedule your exam through the course Moodle page See the full instructions at https www lsu edu testing studenttestingcenter php YOU are responsible for understanding all procedures at the Testing Center and are very highly encouraged to read through each section at the website above You must bring your LSU ID card which must be in good condition so that your identity can be verified Do not schedule your exam during another class This will not be excused by your course Instructor or Professor We do not have labs on any of the days in the Testing Window EXCEPTION If you have accommodation then you should first request to take your exam in ODS at least ten business days in advance Once your Exam Request Form is approved you will be allowed to take the computer based exam in ODS Please contact the Office of Disability Services if you have any questions Exam Information Final Exam Format The exam is a computer based exam consisting of questions similar in format to lab quizzes The exam will be held in the LSU Testing Center The exam is semi comprehensive and covers Safety and GLPs Experiments 1 10 error analysis and determinations Experiments 11 20 calculations error analysis and determinations NOTE Relevant equations for Experiments 1 10 have been provided which will help with error analysis and determinations You will not use them to do any calculations The exam lasts for 90 minutes The exam is 20 of your overall grade You should make every reasonable effort to do as well as possible What You Need During the Exam A non graphing scientific calculator pen pencil to write while working calculations and your LSU ID Your ID must be in good condition so that your identity can be verified You will be provided a periodic table with your exam by the Testing Center Scratch paper will be provided by the Testing Center You cannot use your phone or other device as your calculator You will not be allowed to access your lab manual notebook OR any other material in either print or online web format You will not communicate in any form with anyone during the exam Studying Tips Review the Quizzes and the Study Questions at the end of each experiment in the E Book If you do not remember how to do a calculation go to the E Book chapter and work through the examples and Study Questions Do not try to memorize everything You will be given the chemical reactions constants and molar mass molecular weights of the various compounds Do not memorize these Questions will be based on concepts skills learned in the lab and applied to similar or new situations In a likewise manner quiz questions were applications to a different situation Know how to do each type of calculation for Experiments 11 20 and when to use it Example calculating moles Solid moles Solution moles Molarity mol mass g Molar Mass g mol L Volume L Review of Topics Safety Review the Safety Lecture and Good Lab Practices GLPs in Moodle see the Safety Quiz Know the hazards represented by each GHS icon location of safety equipment in the lab and appropriate attire for working in the lab Skills Be able to describe and or identify appropriate lab skills The lab skills are illustrated in the videos in the Moodle in the Quizzes block You may wish to re watch these to refresh your memory Experiment 1 Determine the correct layering order based on provided density solubility and miscibility data Relevant Equations density mass volume Experiment 2 Identify the reaction type as one of 5 general types for a generic reaction and or a chemical reaction Be able to classify and write a balanced molecular chemical equation from a written reaction description including the correct phases Experiment 3 Know the difference between actual or experimental theoretical and percent yield Be able to calculate theoretical yield and percent yield of Cu II saccharinate or some other known A balanced chemical equation will be provided Be able to mathematically explain how experimental errors would affect the actual yield and percent yield Relevant Equations molessolid Mass Molar Mass and Mass moles Molar Mass Convert from moles of A to moles of B using stoichiometric ratio from balanced reaction Percent yield actual yield theoretical yield 100 Experiment 4 Be able to determine which reactant is the limiting reagent by calculations and or observation and explain why Be able to mathematically explain how experimental errors would affect the end results Relevant Equations Same as Exp 3 and molessolution Molarity Liters Molarity moles Liters Experiment 5 Be able to mathematically explain how experimental errors affect the calculated mass of citric acid in fruit juice Relevant Equations Use stoichiometric ratio to find moles of analyte also find masssolid Experiment 6 Be able to determine the equivalence point pH and volume from a graph of pH vs mL of titrant added Be able to calculate the concentration of analyte using the equivalence point volume Be able to describe each area of a weak acid strong base or strong acid strong base titration and identify the species in solution Relevant Equations Same as Exp 5 Experiment 7 Be able to classify compounds based on their conductivity and or ionization Be able to find the equivalent point volume from a conductimetric titration graph Be able to describe each portion of the titration graph as it relates to the components substances that are in solution Relevant Equations Mtitrant equiv pt vol titrant molanalyte moltitrant molesanalyte and Manalyte molesanalyte Lanalyte PH2O and PV nRT to use to calculate moles of moles and Experiment 8 Be able to mathematically explain how experimental errors may affect the overall results in determining the volume of O2 generated during an experiment Relevant Equations PTotal PO2 then use stoichiometric ratio to find moles of solution composition MH2O2 1L 1000 mL 1 mL 1 g 100 Pay careful attention to moles of solution vs moles of gas Experiment 9 Be able to mathematically explain how experimental errors affect the calculation of the concentration of both the dilute and stock solutions Be able to discuss the results of this experiment Relevant Equations Concstock Volstock Concdilute Voldilute Dilution equation and Beer s Law Absorbance slope concentration Experiment 10