I have attached a pdf file of lab manual – it has about 45 questions about the lab
Read all of experiment 5 in the lab manual. You will be be completing a modified version of this experiment using a series of fourteen videos created by Professor Judy George and filmed by Senior Lab Technician Lisa Oertling using an older version of the lab manual, so we will need to make some adjustments.
During the lab period you will watch the following videos and record experimental observations about physical and chemical changes. As you complete the experiment you will answer the Procedure Questions in the lab manual.
Conductivity YouTube Playlist (Links to an external site.)
sucrose, add .11
NaCl with water use table 5.10
0.1 M HgCl2 use table 5.13
0.1 M HCl, 0.1 M .21
0.1 M .23
0.1 M NaCl use table 5.10
methanol and add water use table 5.12
glacial acetic acid and add water use table 5.14
0.1 M acetic acid use table 5.23
Video #6, 7, and 8
KClO3 use table 5.15
xylene, HCl in xylene, add water use tables 5.16 and 5.17
For the conductivity of 6M HCl and 6M NaOH i.e. table 5.18, please refer back to video #3
Zn and 6M HCl
Zn and 6 M HC2H3O2 use table 5.20
CaCO3 and 6 M HCl
CaCO3 and 6 M HC2H3O2 use table 5.19
H2SO4 and Ba(OH)2 use table 5.25 and 5.26
HC2H3O2 and NH3 use table 5.24
HCl and NaOH use table 5.22
Title – The first page of a new experiment should include the date, experiment name and number to clearly show the start of a new experiment.
Objective – Three to four sentences introducing and explaining the purpose of the experiment to be performed. Be sure to include the experimental technique to be used and determination of unknowns, if applicable. This section should be written in your own words.
Purpose – introducing and explaining the purpose of the experiment to be performed. Be sure to include the experimental technique to be used and determination of unknowns, if applicable
Reference procedure – It is recommended that you write out your procedures, in your own words, prior to the start of lab to help you understand the experiment better, organize your thoughts, and draw any data tables you will need.
Safety – List the any additional safety precautions called for in the experiment; these are usually given in the lab manual
Waste – List the any special waste handling procedures called for in the experiment; these are usually given in the lab manual.
Results and Calculations – The results from your experiment are always entered in this section. Recall in the Objective that you asked the question, what is being investigated in this experiment?. This is the place to answer that question.
Discussion – The discussion is used to explain your results; the previous section is used to present the results, this section is used to discuss these results. Ask yourself provocative questions such as: Do the results make sense, is there some data missing? Did you obtain a result different from your expectations?
Conclusion – Restate the final results of your experiment in a concise and thorough manner. This section should be brief (one-paragraph).
Questions – Give the answers to any questions appearing in the lab manual.
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