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Unformatted text preview: he pieces of mossy zinc by one at each iteration, until you reach 100 pieces of mossy
zinc. Record the mass at each iteration.
Calculations:
The purpose of these calculations is to give you experience with them. Use Excel, calculating
the values below using formulas that you build in the appropriate cells. If there is a built in
Excel function, calculate the same thing using their built in function in a different cell. Account
for any discrepancy between these two values. Repeat the calculations on your calculator as
practice for using your calculator; be sure the values all agree.
A dicey problem: Calculate the mean, median and mode of your data, the variance, and the
standard deviation. Using Student’s ttest, calculate the range of expectation values with 95%
certainty. Repeat these calculations both assuming it is a sample, then a population. Plot the
distribution of values (relative frequencies).
Return to Middle School: Calculate the mean, median and mode of your data, the variance,
and the standard deviation. Using Student’s ttest, calculate the range of expectation values with
95% certainty. Repeat these calculations both assuming it is a sample, then a population. Plot
the distribution of values (relative frequencies). Check the two extreme values (most overthrown
and most under thrown) to determine if these data points can be discarded with 95% certainty.
Bloody students! You are a professor, and had a graduate student quit graduate school in a huff.
He left behind two sets of data (represented by the above two sets). This was very expensive
data to generate, taking a lot of time and (government) money, so you’d rather not have to repeat
it, but you do not know if these two sets of data represent different trials of the same thing. Can
you reject the “null hypothesis” with 95% certainty?
Buns of Mossy Zinc: Using formulas that you input, use the Linear Regression method to
calculate the slope and intercept of this data. Also, calculate the R2 value. Use Excel to plot this
data. Click on one data point in the graph, and leftclick the data. Choose “linear” and have
Excel calculate the slope, intercept and R2 value. Are the results the same as yours? Dakota State University Page 92 of 232 Experiment 7: Quantum Mechanics General Chemistry I and II Lab Manual Experiment 7: quantum mechanics
Purpose: To understand the relationship between electronic structure and the periodic chart.
Purport: To claim, declare, profess or assert. Background:
Using HyperChem
Introduction:
As atoms collide, it is the electrons that interact owing to the simple fact that they are the
only subatomic particles that are not confined to the nucleus of the atom. Thus, the structure of
the electron cloud around the nucleus is essential to the chemical and physical properties of an
element, and the structure of this cloud of electrons is dependent upon the total number of
electrons. From this argument, it might seem reasonable to assume that w could identify an
e
element based on the number...
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 Fall '11
 Kumar
 Chemistry, pH, The Crucible

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