2018/2019

CHM3202 ORGANIC CHEMISTRY II

LAB REPORT

EXPERIMENT 1
TITLE: INFRARED SPECTRA OF ALDEHYDES AND KETONES

Name: Aisyah binti Mohd Khair

Matric no.: 192789
Partner’s name: Nur Erina Nadhirah binti Dzainal Abiddin
Matric no.: 191859
Date of experiment: 18th February 2019
Date of submission: 25th February 2019

Department of Chemistry, Faculty of Science, Universiti Putra Malaysia

Lecture’s Name: Dr. Nadiah binti Mad Nasir
Demonstrator’s Name: 1.
2.
 GUIDELINES FOR WRITING A LAB REPORT

This guide provides an overview of the purpose of each section of a lab report. Note that different
lecturer and demonstrator (who will be grading your work) have different ideas of what a lab report
should look like, so it is recommended that you ask exactly what they expect before you submit
anything. A lab report is written factually. Do not plagiarize and do cite all your sources in the
reference section. To get a really good idea of what a lab report should look like, skim through
scientific journals. Your lab report are required to use the following information:
 Cover Page
In the cover page, you need to include a title of the experiment, you and your partner’s name,
matric number, date of the experiment, date of the submission, the lecturer’s name and the
demonstrator’s name. The cover should be in printed form.
 Introduction
The introduction should be clear and concise. It should tell the reader what to expect in the report.
An introduction generally includes the following elements: Problem – State the issue investigated by
the experiment. Background – Briefly summarise previous research on the topic and narrow the
scope of the study. • Objectives – State the aim of the experiment and state the methods used.
Hypothesis – If this is not already given, you must formulate this in unambiguous terms. The
introduction should be no longer than a ½ to ¾ of a page. Keep it short and general.
 Procedure (How exactly did you do it?)
This section should look like a recipe out of a cookbook. Share your operating procedure (exact
volumes, amounts, incubation times, etc.). Do include any figure if necessary.
 Results (What happened?)
As much as possible, your results should be tabulated to allow for quick reference. All tables and
figures (graphs, diagrams) should be numbered and labelled. This is so you can refer to them in your
discussion section. The results section should also include your sample calculations, if any.
 Discussion (What did you do? Why? What happened? Why?)
This is the most important section of your report. This is where you give a detailed account of what
happened in the experiment.
-Provide possible reaction mechanisms; explain why you added reagents A, B, C when you did, why
you collected your fraction at temperature X, why you detected your analyte at wavelength Y, etc. A
common way to proceed is to step through the procedure while discussing points of interest.
-The most important question here is, why? Your lecturer/demonstrator want to see that you
understand the chemistry behind the experiment.
-The discussion section is also where you interpret your results and draw conclusions. Refer to your
tables and diagrams. You should be comparing your results to expected values. This will be the
longest part of your report, but two pages should be plenty.
 Conclusion (What, how, what happened and why?)
The conclusion section is just a quick overview of what was done and how. More emphasis can be
put on the results and on how future experiments may further inform the theories discussed in the
introduction.
 References
All information (i.e. ideas and words) from other sources used in your report must be accurately
cited in-text and the full bibliographic information supplied in the reference list at the end.

Laboratory report checklist

Checklist (√)
Have you put your name, student number, date of the experiment, date of submission,
lecturer’s name and the demonstrator’s name on your lab report?
Have you included all the appropriate sections in your lab report?
Are all sources correctly in-text and end-text referenced?
Did you hand in your lab report on time and in the correct format?
Did you keep a copy of your report for your own records?
 CHM3401 ANALYTICAL CHEMISTRY
RUBRIC FOR ASSESSING LAB REPORTS

1 2 3 4
Beginning or incomplete Developing Accomplished Exemplary Score
Introduction Very little background Some introductory information, Introduction is nearly complete, Introduction complete and well-
information provided or but still missing some major missing some minor points written; provides all necessary
information is incorrect points background principles for the
experiment
Experimental Missing several important Written in paragraph format, still Written in paragraph format, Well-written in paragraph format,
procedure experimental details or not missing some important important experimental details all experimental details are
written in paragraph format experimental details are covered, some minor details covered
missing
Results: Figures, graphs, tables contain Most figures, graphs, tables OK, All figures, graphs, tables are All figures, graphs, tables are
data, calculation,, errors or are poorly constructed, some still missing some correctly drawn, calculation are correctly drawn, are numbered
graphs, tables, etc. have missing titles, captions or important or required features correct but some have minor and calculation are correctly
numbers, units missing or problems or could still be calculated.
incorrect, etc. improved
Discussion Very incomplete or incorrect Some of the results have been Almost all of the results have All important trends and data
interpretation of trends and correctly interpreted and been correctly interpreted and comparisons have been
comparison of data indicating a discussed; partial but incomplete discussed, only minor interpreted correctly and
lack of understanding of results understanding of results is still improvements are needed discussed, good understanding of
evident results is conveyed
Conclusions Conclusions missing or missing Conclusions regarding major All important conclusions have All important conclusions have
the important points points are drawn, but many are been drawn, could be better been clearly made, student shows
misstated, indicating a lack of stated good understanding
understanding
Spelling, grammar, Frequent grammar and/or Occasional grammar/spelling Less than 3 grammar/spelling All grammar/spelling correct and
sentence structure spelling errors, writing style is errors, generally readable with errors, mature, readable style very well-written
rough and immature some rough spots in writing style
Appearance and Sections out of order, too much Sections in order, contains the All sections in order, formatting All sections in order, well-
formatting handwritten copy, sloppy minimum allowable amount of generally good but could still be formatted, very readable
formatting handwritten copy, formatting is improved
rough but readable
Submission on time Yes (2 points)
No (1 point)
TOTAL SCORE /30
 Group 1

Name of students Experiments Total marks 5%

1 2 3 4 5 6 7 8 9 Average Average/6

Contoh = Sazlinda 25 24 28 24 30 23 25 30 28 26.3 4.39

Siti 30 30 30 30 30 30 30 30 30 30 5