SYLLABUS CHEM 201 Lab - General Chemistry I Laboratory Fall, 2018

Transcription

1 SYLLABUS CHEM 201 Lab - General Chemistry I Laboratory Fall, 2018 Instructor: Dr. J. Scott McConnell Office and Office Hours: The instructor s office is 519A. Office hours are 1:00-4:00 Tuesday; and 1:00-4:00 Thursday. Call the Chemistry Department ( ) or JS-McConnell@WIU.edu, and make an appointment prior to meeting. Laboratory Manual: CHEM 201 General Chemistry I Laboratory Manual. Hayden- McNeil, publishers. ISBN Laboratory Meeting Times: As scheduled Laboratory Location: Currens Hall 319, 323 Laboratory Assistants: Deanna Castellon, Olanrewaju Oni, Taylor Gunby Expense Materials Required: Costs for these materials are the responsibility of the student. Laboratory Manual. CHEM 201 General Chemistry I Laboratory Manual. Hayden- McNeil, publishers. ISBN Material Safety Data Sheets (MSDS) of all chemicals utilized in the laboratory can be found at the following web site: E-copies are free of charge. Approved personal eye protection is required for the laboratory component of CHEM 201. The student must purchase safety goggles. A simple scientific calculator without extensive memory functions (i.e. Texas Instruments model 30, equivalent, or less sophisticated models). Students enrolled in this course are levied a non-refundable laboratory usage fee of $35 to cover the cost of consumable supplies utilized during the semester. Information Regarding CHEM 201 Lab: Lab work is an integral part of the CHEM 201 course. Lab attendance is important and you must attain a minimum of 130 total lab points to pass the course regardless of the lecture grade. It is important that you complete the pre-lab quiz (found on Western Online) and study all relevant materials BEFORE the day of the lab so that you are familiar with: 1. The lab procedure and can conduct the lab in a time efficient manner, 2. The equipment used and the lab techniques involved, and 1

2 3. The calculations used in the lab. All take-home pre-lab quizzes are worth 5 points. The quizzes are available on Western Online for each laboratory exercise. The lab grade will be based on the best 10 out of 12 labs quizzes and lab reports. There are NO MAKE UP LAB QUIZZES. All labs are worth 15 points and the lab grade will be based on the best 10 out of 12 lab reports. There are NO MAKE UP LAB REPORTS. Lab reports are due by 4:30 p.m. the day after the lab session is completed. A penalty of five points per day will be levied for late labs. Lab reports may be turned into the Teaching Assistant or at Currens 107 to the Teaching Assistant s mail box. Lab reports MUST BE marked with the following: student s name, course number (CHEM 201), lab section number, lab meeting time, and the TA s full name. Failure to include this information may result in a zero for the lab report. The laboratory final examination will be worth 50 points. The laboratory final examination will cover the principles and applications of laboratory techniques, calculations and safety procedures for CHEM 201 Students with Disabilities: In accordance with University values and disability law, students with disabilities may request academic accommodations where there are aspects of a course that result in barriers to inclusion or accurate assessment of achievement. To file an official request for disability-related accommodations, please contact the Disability Resource Center at , disability@wiu.edu or in 143 Memorial Hall. Please notify the instructor as soon as possible to ensure that this course is accessible to you in a timely manner. University Values, Title IX, and Other Federal and State Laws Prohibit Sex Discrimination, including sexual assault/misconduct, dating/domestic violence, and stalking. If you, or someone you know, has been the victim of any of these offenses, we encourage you to report this to the Title IX Coordinator at or anonymously online at: If you disclose an incident to a faculty member, the faculty member must notify the Title IX Coordinator. The complete Title IX policy is available at: The Following Action is Prohibited under the Student Conduct Code: Disorderly Conduct. Disorderly conduct is defined as any behavior which disrupts the regular or normal functions of the University community, including behavior which breaches the peace or violates the rights of others. ( 2

3 Student Rights and Responsibilities: Student rights and responsibilities are listed on the WIU website ( Academic Integrity Policy: Important Dates: Date (Fall, 2018) August 20, Mon. September 3, Mon. October 12, Fri. November 19-21, Mon.-Wed. November 22-23, Thurs.-Fri. December 10-14, Mon.-Fri. December 15, Sat. Event Classes Begin Labor Day -- No Classes/University Closed Fall Break -- No Classes Thanksgiving Break -- No Classes Holiday -- University Closed Final Exam Week Commencement Any situation, condition, or circumstance not covered in the syllabus is subject to the decisions of the instructor, only. 3

4 Date Lab Experiment Laboratory Concepts Aug 28 and 30 Lab 1 LAB CHECK-IN/ACS STANDARD EXAMINATION FOR HIGH SCHOOL STUDENTS Lab equipment will be checked and inspected. Instruction will be given in identification. Each student will take the ACS standard examination for high school students. Sept 4 and 6 Lab 2 OBERVING THE REACTIONS OF HOUSEHOLD CHEMICALS Lab Exercise. Complete lab procedures 1 and 2. Record results in Data Table. Answer Consider This questions 1-2. s of this exercise are to observe the chemical reactions of commonly found materials; and to deduce the identity of common materials from patterns of reactions with known chemicals. Sept 11 and 13 Lab 3 MASS AND VOLUME RELATIONSHIPS - 5. Record results in Data, Calculations, and Observations 1-5. Answer the Consider This question. of this exercise is to determine the density of solids and liquids; to examine the relationship between solution density and concentration; and to become familiar with significant digits. Sept 18 and 20 Lab 4 EMISSION SPECTROSCOPY Lab Exercise. Do Procedures from Western Online. Record results in the in the Data Tables. Answer post-lab questions 1-3. s of this exercise are to observe and qualitatively identify the colors of metal ions in a flame; to observe vapor lamps with prisms; and to relate these phenomena to the excitation/relaxation of electrons. 4

5 Sept 25 and 27 Lab 5 THE REACTION OF IODINE WITH ZINC - 2. Record your data and complete the calculations in Data and Calculations Report 1 and 2. Answer Consider This questions 1-5. of this exercise is to determine the iodine/zinc mass ratio for zinc iodide; to use stoichiometry to determine the simplest chemical formula for zinc iodide; and to balance the chemical equation for the reaction of zinc with iodine. Oct 2 and 4 Lab 6 THE MOLE IN CHEMICAL FORMULAS Lab Exercise. Complete procedures A - C. Record your data and complete the calculations in Data Table for A - C. Answer the Question for Reflection. of this exercise is to observe the chemical reactions that may occur that will alter the stoichiometry of compounds; and to calculate masses and convert to moles. Oct 9 and 11 Lab 7 MODELS OF MOLECULAR SHAPES Lab Exercise. Complete the Table of Models of Molecular Shapes. Complete the VSEPR Family extended question 1-5. of this exercise is to draw Lewis structures of molecular compounds; and to use molecular models to build 3- D structures of the molecular compounds; and then connect the concepts of Lewis structures and molecular geometry. 5

6 Oct 16 and 18 Lab 8 WRITING LEWIS STRUCTURES Lab Exercise. Complete the Report Form and answer post-lab questions 1, 5, 7 and 8. s of this exercise is to correctly draw Lewis structures of molecules and molecular ions; to determine when single, double and triple bonds are used are needed in Lewis structures; to calculate bond order for each ligand in a molecules. Oct 23 and 25 Lab 9 THE TITRATION OF VINEGAR AND STOMACH ANTACIDS Lab Exercise. Complete procedures 2 and 3. Answer questions (a) - (f). of this exercise is to understand the definition of ph; to differentiate between the H 3 O + concentration and the total acidity of an acid; to learn acid-base titration by using a buret to measure volume and an acid-base indicator to determine the end point of a titration; and to quantitatively determine the neutralization capacity of a commercial antacid tablet. Oct 30 and Nov 1 Lab 10 ELECTRON TRANSFER REACTIONS - 3, 5-6. Record your data and complete the Experimental Data questions 1-3. of this exercise is to study chemical reactions that transfer electrons; to observe redox reactions and determine if a reaction takes place; and to place redox pairs in order of increasing oxidizing or reducing strength. 6

7 Nov 6 and 8 Lab 11 THE HEAT CAPACITY OF METALS - 2. Record your data and complete the Data and Calculations tables 1-2. Answer questions 1-2. of this exercise is to understand heat, energy, work, and heat capacity; to understand how heat is related to molecular motion; and to use a simple calorimeter to measure the heat capacity of a metal. Nov 13 and 15 Lab 12 ENTHALPY CHANGES IN CHEMICAL REACTIONS: HESS S LAW - 3. Record your data and complete the Data and Calculations tables 1-3. Complete the Summary of Results. Answer question 1. of this exercise is to test Hess s law by measuring the enthalpy changes for the same chemical reaction carried out by two different paths; and to make an estimate of the enthalpy change for the dissociation of water. Nov 27 and 29 LABORATORY FINAL EXAMINATION The laboratory final examination will cover the principles and applications of laboratory techniques, calculations and safety procedures for CHEM 201. The laboratory final examination will be held during your regular laboratory period. 7