The formal lab report for the Ksp lab is due Wed/Thurs this week depending on which day you have lab. In general, lab reports are due one week after you complete the lab. I have been receiving several questions about what to include so here is what I expect for this lab report.
First go to Carmen and look at the Ksp formal lab report guidelines and the Ksp formal lab report grading rubric. The details for what to include in the report are listed there.
Some other words of wisdom for the report:
*It must be typed
*It will be very helpful to get a 123 TA to look over your report. There is a 123 TA present in 160 CE pretty much all day on Tuesdays. They will be your best resource for editing and giving helpful hints for the report because they will be the ones grading it.
*The Report sheet should be attached and all you need to say is something like "The results are displayed on the attached report sheet." In the discussion you need to look up (and be sure to cite your source) the Ksp and compare that to your experimental Ksp. The "critical thinking question" is to properly discuss the error. What I mean by this is to come up with a chemical reason (it is really beneficial to discuss the overall equilibrium expression and what cause this equilibrium to shift to the left or the right) your value is different than the literature value.
*Sometimes students think they can perform 3 trials in the lab and simply give an average Ksp. Whenever you calculate an average value in the lab, you must report a standard deviation (or some sort of error analysis with it). On page 1110 of your textbook it shows how to calculate the standard deviation. Your "reported Ksp for Ca(IO3)2" is your experimental average for the Ksp +/- the standard deviation.
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