Word Processing Exercise
Please use the remainder of the laboratory time using Microsoft Word to reproduce the
text within the boxes.
Use subscripts and superscripts
An ethanol, C2H5OH, gel is created by adding a 1/5th volume measure
CALIBRATION OF A THERMISTOR THERMOMETER
Calibration experiments or procedures are fairly common in laboratory work that involves
any type of instrumentation. Calibration procedures always require a standard substance or
device against wh
Evaluation of Quantitative Data
(errors/statistical analysis/propagation of error)
Laboratory work in chemistry can be divided into the general categories of qualitative studies
and quantitative studies. Qualitative studies include such ar
Statistical Analysis/Propagation of Error Problems
Most calorimeter experiments require two steps. The first step is to find the heat capacity of the
calorimeter system. The second step is the measurement of the energy change for the reaction of
PLATINUM THERMOMETER PROBLEM
Platinum thermometers are constructed of a small coil of platinum wire enclosed in either a
glass or stainless steel tube. The temperature of the thermometer is calculated from the
measured resistance of the pl
pKa of 2,4-Dinitrophenol
Please Note: Read an MSDS for 2,4-dinitrophenol and understand the hazards and safety precautions
necessary to safely work with the compound for doing any lab work.
Thermodynamic equilibrium constants (Kth) for t
Least Squares Problems
If a set of experimental data produces a linear plot or if theory predicts a linear plot, then the
fitting equation would have the following form:
Y = a + bX.
Using the method of least squares, derive the two equations n
Method of Least Squares
Suppose an experiment yields the following series of derivative data:
And further suppose that a plot of th
Data Acquisition System
I. Description of Basic System
The data acquisition system (figure 1) consists of a desk top computer equipped with
LabView software, a digital multi meter (DMM), and a digital control box. The computer
Graphing and Curve Fitting In Class Problems
A. Simple Graph, one set of x,y data.
1. Enter the following data into a blank spreadsheet.
Table - 1 Pressure- Gas Density Data (Acetic acid vapor)
Introduction to Data Types and Curve Fitting
I. Data types
Physical measurement data and analytical data generally fall into one of two categories. For
the lack of better terms, we will refer to these categories as replicate data and as derivative data.
Please Note: Each lab group will be required to pick the compound they use in this experiment.
The compound must contain only carbon and hydrogen or carbon, hydrogen and oxygen. The
C H or f H for this compound must have been det