Chem 1310 Fall 2009 1st Assignment for Lab
Your 1
st
day in lab will be an introduction to a variety of topics to get you ready to do lab work
at GT.
You will be covering:
•
Basics of Scientific Writing
•
Basics of Scientific Plotting
•
Honor Code; how and when
you may collaborate
•
Prelabs and Postlabs
•
Lab Safety
•
Lab Checkin
You must bring to lab a scientific plot and a short essay to facilitate the modules on writing and
plotting. These are your “prelab” entrance tickets to get into lab next week.
They are worth 100
points for “Writing Assignment 1”.
Scientific Plotting
Many times in scientific data there is a relationship between the independent and dependent
variables in a data set. The best way to see this relationship is to make a graph of the X and Y
data.
The independent data is plotted on the X axis while the dependent data is plotted on the Y
axis. It is usually referred to as, Y (dependent data)
vs. X (independent data). Common examples
of independent data are time and concentrations. Some examples of dependent data are
absorbance, rate constant and equilibrium constant.
The data is plotted as a scatter plot and then
a trendline is added to visualize the data. The type of line that is used to visualize your data
should be based on theory underlying the experiment. Many times in beginning chemistry the
relationship between the two variables is a linear one or the mathematical equations are
manipulated to get a linear relationship.
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 Spring '10
 WILLIAMS
 Statistics, Regression Analysis, Lab Safety Lab, Scientific wri ting

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