In order for a pre-lab for Exp #26 to make any sense, you need to first perform the solubility tests from page 93 of the procedure. A nice outline of what you need to look for is on page 88. Write down a detailed description of the physical appearance of your unknown and once you narrow down your options for your unknown salt (as outlined last week in lecture) check the physical properties of inorganic compounds in the CRC to try and narrow down your unknown even more. You should complete all this as soon as you finish Exp #25 III. You will have two lab periods to perform the test and identify your unknown salt, so you need to come up with a plan in order to finish.
You can write out the pre-lab on a piece of paper or you can write it out in your lab notebook. Whatever you prefer would work just fine. Your TA will walk around the lab during the assigned periods to check things out.
Note: Remember that we are performing the transition metal lab next week and Exp #26 will come the following week.
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