Laboratory
Grading
The grade in the
laboratory counts 25% toward your overall grade for the
course. A passing grade must be obtained in
the laboratory in order to pass the course.
Grading of
Experiments. The grade for each experiment is
determined by the following:
- Lab Notebook:
Pre-Lab Plan = 10%,
- Lab Notebook:
In-Lab Journal = 10%
- Lab Report = 50%
- Quality of Lab Work = 10%
- Lab Quiz = 20%
Grading
of Molecular Modeling Exercises.
- Worksheet
including post-lab questions = 50%
- Lab Quiz =
50%
Grading
of Laboratory Notebooks. (20%) Lab notebooks are graded
on the degree of adherence to the format described in
the guidelines and on the completeness and quality of
each section. Omissions will lead to
significant deductions so make sure your notebook is
complete.
- In-Lab
Journals receive a team grade although one person
will be assigned as the primary note taker for each
experiment.
- Pre-Lab Plans are
prepared by each student individually.
Grading
of Lab Reports. (50%) Lab reports are graded primarily on
the completeness and quality of each section as
delineated in the guidelines. The results and
discussion section and results tables section are
probably the most important parts and receive the
greatest emphasis in grading. The overall writing
quality (including neatness, organization, and writing
quality) will also be factored into the grade for each
report.
Quality of Lab
Work. (10%) Lab grades also factor in the quality
of your lab work. Low yields, impure products, or
otherwise poor results and excessive amounts of
glassware breakage will adversely affect your grade in
this area. The products from each experiment are always
submitted for grading prior to proper disposal.
Lab Quizzes.
(20%) Lab quizzes will be given periodically throughout
the semester. Some of the lab quizzes will be
given at the start of lab before carrying out the
experiment (pre-lab quizzes) others will be
given after the report is turned in (post-lab quizzes).
The lab quizzes can be on any aspect of the experiment,
from spectra interpretation to reaction mechanism to
purification procedures to calculation of the
theoretical yield, etc.
Due Dates.
Due dates for the reports
are one week after completion of the experiment
(unless otherwise announced) and late lab
reports will be penalized at least 5%. (Under
certain circumstances you may be granted an extension
of a report deadline. Ask the instructor if you feel
you need an extension. ) The pre-lab is due at the
start of the lab period the lab is to be performed.
Late pre-labs do not receive credit and you will
not be allowed to work on any experiment without
handing in a complete pre-lab. The
in-lab journal is always due the same day it was
written and is turned in before leaving the lab.
Lab Teams.
Due to the ongoing situation with COVID-19 and the need
for social distancing, students will work individually,
at least for the first few experiments. If the severity
of the pandemic lessens later in the semester we may do
a few experiments as teams of two. Teammates will be
randomly determined.
Attendance.
Your attendance at all
scheduled labs is required. If you have a legitimate
excuse then it is your responsibility to
contact the instructor prior to the lab in
order to work out arrangements to make up the lab if
possible. One absence may be acceptable as determined
by the instructor considering the circumstances.
Additional absences will receive a zero grade for the
experiment.
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