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Unformatted text preview: iner on the bench. You
may wish to have a beaker in your work area to collect waste while you are doing the experiment. Make sure it
www.webassig n.net/ebooks/wsug encheml1/lab_9/manual.html 3/5 4/15/13 Lab 9 - Eq uilibr ium and Le Châtelier ' s Pr inciple is labeled. Use a squeeze bottle of deionized water to rinse the solutions into the beaker; use a minimum amount
of water to avoid creating large volumes of waste solution. The plates and test tubes can then be washed in the
normal manner. Lab Procedure
Please print the worksheet for this lab. You will need this sheet to record your data. Part A: Fe3+ + SCN- FeSCN2+ Equilibrium 1
In five wells on a ceramic spot plate, place 2 drops of 0.05 M NaSCN (sodium thiocyanate), 2 drops of
0.01 M Fe(NO3)3 solution, and 3 drops of deionized water. M ake s ure you have take n the corre ct
conce ntrations of e ach s olution. Mix each with a stirring rod; all of the solutions should appear re d.
Add 2 drops of deionized water to well 1. This well will serve as your color comparison for the following...
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- Spring '14