CHEMISTRY 302

QUANTITATIVE ANALYSIS LAB

Fall Semester, 2009

Instructor: April DupreOffice: 107 Peltier Hall

Phone: 448-4503e-mail:

Office hours: MW 11:45-12:45, TTh 1-5

CATALOG DESCRIPTION

Chemistry 302. Quantitative Analysis Laboratory. 2-0-6. The course includes determinations which illustrate the theories of gravimetric and volumetric analysis. (40.0502)

PREREQUISITE/COREQUISITE - Prerequisite or corequisite: Chemistry 300.

REQUIRED TEXTS/MATERIALS

D.A. Skoog, D.M. West, & F.J. Holler. Analytical Chemistry, 7th. edition. HarcourtBraceCollege Publishers, Philadelphia, Penn., 1999.

There are handouts for the various experiments, which can be bought at Copy Connection. These handouts include suggested reading for each experiment. You are responsible for knowing the information in chapter 2. You should consult chapter 2 for information about apparatus and operations you will encounter in this lab.

REQUIRED SUPP. READINGS – none

COURSE GOALS

  • To develop the skills needed to solve analytical problems in a quantitative manner.
  • To develop those laboratory skills that will give the students confidence in their ability to obtain high-quality analytical data.

STUDENT OUTCOME OBJECTIVES

Upon completion of this course, students will be able perform the following analyses:

  • gravimetric determination.
  • electrolytic deposition
  • volumetric determination
  • spectrophotometric determination
  • atomic absorption spectroscopy
  • gas chromatography

EDUCATIONAL COMPETENCIES COVERED

At the completion of the course candidates will acquire be able to demonstrate the benchmarks related to:

  • measurement and symbolic representation (PS-H-A1)
  • structure and properties of matter (PS-H-C4)
  • chemical reactions (PS-H-D2 to D7)
  • abilities necessary to do scientific inquiry ( SI-E-A2-A7, SI-M-A2-A8, SI-H-A1-A7 )
  • understanding scientific inquiry (SI-E-B2-B6, SI-M-B3, B5,B6, SI-H-B1)

COURSE CONTENT

Check in –Aug 19

Pre)Preliminary weighing exercise and introduction to statistics. See handout. Reading assignment: Sections on Statistics, chapters 5-7.

Jan 22

1.)Gravimetric determination of chloride in a soluble sample. Reading assignment: Chapter 8 and pp 729-730.

2.)Volumetric determination of chloride in a soluble sample. Reading assignment: Chapter 15, pp740-741, and see handout for procedure.

4.)Volumetric determination of soda ash with a pH meter. Reading assignment: Chap 13, pp 732-737 see handout for procedure.

Catch-up time/computer

5.)Spectrophotometric determination of iron. Reading assignment: Chaps 18 and 21, 764-768, and see handout for procedure.

6.)Copper by atomic absorption spectroscopy. Reading assignment: Chapter 23 and see handout for procedure.

7.) Exp 7 lecture, computer work for exps. 5 & 6

8.)Gas chromatography of an organic mixture. Reading assignment: Chapters 24 and 25, and see handout for procedure.

9.) Make-up day

10.) Check out – April 25

11.) Final – April 30

COURSE REQUIREMENTS/METHOD OF EVALUATION

The final grade will be based upon (sum of following categories)* 0.1:

Preliminary exercise50

Unknowns (seven @ 100 pts ea.)700

Notebook (25 pts ea. exp.)175

Final exam200

Total pts1125

Grading scale - (1000 pts total) A= 90-100%; B= 80-89%; C= 70-79%; D= 60-69%; F= below 59%.

LAB REPORT DUE DATES

Lab reports are due 1 week after experiment completion

NOTE: 5 PTS A DAY WILL BE DEDUCTED FOR LATE LAB REPORTS

MAKE-UP POLICY

There will not be any make-up labs allowed. It is the responsibility of the student to complete all experiments during the assigned lab periods.

ATTENDANCE POLICY

Attendance of all students is mandatory. A total of two unexcused absences will result in the student being dropped from the class with a grade of "F". There will be no makeup labs.

ACADEMIC HONESTY POLICY - Cheating or scholastic dishonesty will not be tolerated. In cases of academic dishonesty the instructor may dispose of the matter by invoking a maximum sanction of immediate expulsion from the course and the issuance of a failing grade.

SEMESTER WITHDRAWALS – The last day to withdraw from the class with a “W” is October 28, 2009.

ACADEMIC DISABILITY POLICY: If you have a documented disability that requires assistance, you will need to register with the Office of Disability Services for coordination of your academic accommodations. The Office of Disability Services is located in Peltier Hall, Room 100-A. The phone number is (985) 448-4430 (TDD 449-7002).

ACADEMIC GRIEVANCES - The proper procedure for filing grade appeals or grievances related to academic matters is listed in Section 5 of the Code of Student Conduct and at the following link:

CONTINUED LEARNING FOLLOWING AN EXTREME EMERGENCY

In order to make continued learning possible following an extreme emergency, students are responsible for:

• Reading regular emergency notifications on the NSU website;

• Knowing how to use and access Blackboard (or university designated electronic delivery system);

• Being familiar with emergency guidelines;

• Evacuating textbooks and other course materials;

• Knowing their Blackboard (or designated system) student login and password;

• Contacting faculty regarding their intentions for completing the course.

Faculty is responsible for:

• Their development in the use of the Blackboard (or designated) software;

• Having a plan for continuing their courses using only Blackboard and email;

• Continuing their course in whatever way suits the completion of the course best, and being creative in the continuation of these courses;

• Making adjustments or compensations to a student’s progress in special programs with labs, clinical sequences or the like only in the immediate semester following the emergency.

NOTEBOOKS AND LAB REPORTS

The laboratory notebook must be a permanently bound book with alternating white and yellow quadrille ruled sheets. The yellow sheets will be used to make carbon copies of the original white sheets. The ORIGINAL white sheets are to be handed in with the lab report data sheet.

RULES FOR LAB NOTEBOOK

a.)ALL DATA IS TO BE RECORDED IN BLACK INK DIRECTLY IN THE NOTEBOOK (do not forget the carbon paper)

b.)Label and date all entries.

c.)An error should be lined through with a single horizontal line, initialed and briefly explained.

d.)A single diagonal line should be drawn across any page that is to be ignored, initialed and briefly explained. This includes completely blank pages.

e.)The backs of the yellow pages may be used for scratch work BUT, measurements and readings are to be recorded as DATA.

f.)Number all the pages in the notebook in the upper right hand corner of the page. The yellow carbon copies must bear the same number as the white originals.

g.)Use page 1 for a TABLE OF CONTENTS. This should be maintained on a current basis at all times.

h.)Use page 2 for a PREFACE and a table of abbreviations. Include your name, social security number, classification, major, course title, number, section, semester, year, and instructor.

NOTEBOOK FORMAT

Begin each experiment on a new page.

1.)Title and Introduction

Give the title of the experiment and a 1 or 2 sentence description of the experiment. Important chemical reactions should also be included here.

2.)Experimental Plan

Provide a summary of the experimental procedure; cite the source of the experimental procedure. Read the lab and be familiar with what will be happening. Summarize the steps.

3.)Procedure and Data

This section is the laboratory "diary" in which you write a step-by-step description of what you do in the lab. Enter data as it is collected. Any observations are to be recorded here also (colors, odors, temp., apparatus used, amounts of reagents, etc.). Draw pictures if appropriate, use tables, graphs, equations, etc. Record details such as Instrument name and maker, model number and serial number, chemical manufacturer, grade, lot number and expiration date, etc.

4.)Calculations

Give one example of each type of calculation used in the experiment that has not been included in the previous section. In general, this section will deal with the calculation of the final results. Be sure to include a set-up with all appropriate units. Whenever multiple samples of the unknown are analyzed, the average and the standard deviation (s) should be calculated.

5.)Discussion

This section includes all relevant results and supporting chemical theories and concepts pertaining to the experiment. You must be able to convey your understanding of what went on in the experiment. Any deviation of results from the expected results must be addressed and explained. Objectively evaluate the results in terms of their precision. Speculate as to any sources of error. If appropriate, give the normal ranges for the analyte.

6.)Conclusion

Report each of the results obtained for your unknown, normally three separate determinations, the average of these results and the standard deviation.

7.)Report Form

Fill out and submit your results on the separate report sheet. Be sure to staple report form to top of lab report.

***THIS SYLLABUS IS NOT A CONTRACT AND IS SUBJECT TO CHANGE.***