The University of North Carolina at Pembroke Department of Chemistry and Physics, POB 1510 Pembroke, North Carolina 28372-1510 Phone: 910-521-6247 Fax: 910-521-6638 Web: http://www.uncp.edu/chem_phy Course CHM 2270 "Analytical Chemistry” Term 2015 Fall Semester Professor Paul A. Flowers office: SCI 3221, phone 521-6424, voice mail 521-6777 email: paul.flowers@uncp.edu web: click here for web page Meetings Class: MWF 1:25-2:15 pm SCI 3248 Laboratory: W 2:30-5:20 pm SCI 3105 Office Hours see schedule at Prof. Flowers’ web site Required text book: Sapling e-Book and Homework for “Quantitative Chemical Analysis” by th Course Daniel Harris, 9 edition (Six Month Access), ISBN 1319043631 Materials *students may purchase access cards from the UNCP Bookstore or directly from the vendor website – at the website, first create an account and then search for our course ID: UNC Pembroke - CHM 2270 - Fall15 – FLOWERS laboratory notebook: composition-type notebook required, no spiral bound or loose leaf notebooks permitted; also required is a three-ring binder with pockets in which to keep the lab notebook and paper copies of supporting documents personal protective equipment: safety glasses with side shields (or safety goggles) and a standard lab coat Description From the UNCP Catalog: “The principles and techniques of classical methods of chemical analysis and some of the most common instrumental methods will be examined with an emphasis on quality assurance and method validation concepts. Laboratories will involve the use of these analytical techniques in the determination of substances in a variety of sample matrices. Credit, 4 semester hours. PREREQ: CHM 1310, 1110.” Objectives The activities and assignments in this course are aimed at developing students’ and Format theoretical and practical knowledge in the science of chemical analysis, increasing their proficiency in the technical skills associated with common classical and instrumental methods of analysis, and honing auxiliary skills in data analysis and presentation, technical writing, and oral communication. Interactive lectures and group problem solving sessions are the primary activities associated with the classroom component of this course. Laboratory activities will typically involve brief pre-lab lectures, individual or paired experimental work, and post-lab data analysis sessions. Safe laboratory practices must be followed at all times while working in the lab; violators may suffer substantial grade penalties and/or dismissal from the lab. More details concerning issues related to the lab portion of this course are provided in the course lab manual available at the course Blackboard site. Preparation for the lab and class meetings, and completion of the various graded assignments in this course, will require on average five or more hours of effort outside of the scheduled meeting times. Cell phones should be turned off and put away during all meetings unless an exception is approved in advance by the professor. ADA Access In post-secondary school settings, academic accommodations are not automatic; to receive accommodations, students must make a formal request and must supply documentation from a qualified professional to support that request. Students who believe they qualify must contact the Accessibility Resource Center (ARC) in DF Lowry Building, Room 107 or call 910-521-6695 to begin the accommodation process. All discussions remain confidential. Accommodations cannot be provided retroactively. More information for students about the services provided by ARC and the accommodation process may be found at: http://www.uncp.edu/arc Attendance The campus-wide policy on class attendance is described on p. 69 of the UNCP catalog, and the policy on religious holiday observance is available via this link. Attendance of all scheduled class meetings is an expectation and will likely be necessary to learn the material and perform well on the graded assignments. Students will be responsible for signing an attendance roster at each class and lab meeting. Though attendance per se is not factored into the course grade, students are advised that provisions for completing any work missed due to an absence will be made only for a compelling reason and if a written request is submitted to the professor within 24 hours of the absence. Honor Code Students are expected to read and strictly adhere to the UNCP Honor Code (see pp. 70-73 of the UNCP catalog). Assignments Student performance on a variety of assignments and activities will be evaluated to & Grading determine grades for this course. These graded components are described below, with additional details provided at the course Blackboard site: activity / assignment objective / basis for evaluation ten (10) laboratory projects technical proficiency, effective written communication – arriving promptly and prepared for each lab meeting; working safely, continually and earnestly during the meeting; appropriately documenting all efforts in a well-kept lab notebook (evaluated by the professor at each lab meeting) and in brief, written summary reports lab practical exam technical proficiency – correctly executing and recording the results of standard lab measurements and procedures (in lab) ten (10) homework assignments theoretical and practical knowledge – submitting promptly all assignments, with each showing evidence of good-faith effort to complete all parts; accuracy of responses (online) 10 @ 1 pt/ea 10 pt four (4) pre-term tests theoretical and practical knowledge – responses to items on brief tests (20 -30 items per test, taken on-line in SCI computer lab during 1-h proctored sessions) 4 @ 10 pt/ea 40 pt one (1) final exam theoretical and practical knowledge – responses to items in an ACS Exam on Analytical Chemistry (50 items, taken in class during a 100min final exam session, in-class) total possible points point value 10 @ 3 pt/ea 30 pt 10 pt 10 pt 100 pt Course grades will be assigned based on the total number of points earned according to a 100pt scale where 100-93=A, 92-90=A-, 89-87=B+, 86-83=B, 82-80=B-, 79-77=C+, 76-73=C, 7270=C-, 69-67=D+, 66-63=D, 62-60=D-, and 59 or below=F. These letter grades will then be converted to the 4-point QPA scale by the University Registrar's Office and reported in student academic transcripts (see p. 61-62 of the UNCP catalog ). Schedule Week of Class Meeting Topic (Text Chapter) Laboratory Activity Aug 17 Basic Concepts (0-1) Project #1: Calibration of Volumetric Ware Aug 24 Basic Concepts (cont.) Statistical Evaluation of Data (3-4) Post-lab session and workshop on spreadsheet data analysis (location: SCI 1254) Aug 31 Statistical Evaluation of Data (cont.) Project #2: Density of Aqueous Isopropanol Sep 7 Mon – university holiday Statistical Evaluation of… (cont.) Test #1 (Fri, 11 Sep) Project #3: Extraction Techniques Sep 14 Calibration (5) Project #3: (cont.) Sep 21 Calibration (cont.) Sample Preparation (28) Project #4: Gravimetric Determination of Fat in Potato Chips Sep 28 Sample Preparation (cont.) Test #2 (Fri, 2 Oct) Project #4: (cont.) Oct 5 Gravimetry (27) Project #5: Back-Titration of Carbonate Oct 12 Gravimetry (cont.) Titrimetry (7-12, selected portions) Thu-Sat – university holiday Oct 19 Titrimetry (cont.) Oct 26 Titrimetry (cont.) Test #3 (Fri, 30 Oct) Nov 2 Spectrometry (18-20, selected portions) Project #7: Photometric Determination of Food Dyes Nov 9 Spectrometry (cont.) Electrochemistry (14-15) Project #8: Determination of Lead in Soil by Optical Emission Spectrometry Nov 16 Electrochemistry (cont.) Test #4 (Fri, Nov 20) Project #9: The Glass Membrane Electrode Nov 23 Chromatography (23-25, selected portions) Wed-Fri – university holiday -- Nov 30 Chromatography (cont.) classes end Thu Dec 7 Project #5 (cont.) Project #6: Transition Ranges and Titration Errors for Acid-Base Indicators -- Project #10: Determination of Ethanol in Blood by Headspace Gas Chromatography lab practical exam Mon, 7 Dec, 1:30-4:00 pm final exam Fri, 11 Dec, 10:45 am – 1:15 pm The course professor may amend this syllabus as needed to accommodate unforeseen issues impacting the academic quality of the course and reasonable expectations of student success. Students will be notified of any such amendments in a timely manner. This publication is available in alternative formats upon request. Please contact the Accessibility Resource Center in the D. F. Lowry Building, 521-6695.