UWEC CHEM 213 - Ionic Compounds 1 (19 pages)

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Ionic Compounds 1



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Ionic Compounds 1

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Lecture Notes


Pages:
19
School:
University of Wisconsin-Eau Claire
Course:
Chem 213 - Quantitative Analysis

Unformatted text preview:

Ionic Compounds 1 Fundamentals and Solubility Revised 1 08 SB The goal of this lab is to help students better imagine what ionic crystalline compounds look like on the atomic scale how these compounds dissolve in water and what the products of that dissolution process are note dissolution is a physical process not a chemical reaction The experiments are split into four activities I Visualization model kits and the Atomic Microscope program are used to examine liquids solids crystals and then ionic crystals in particular II Dissolution web based animations of the dissolution process will be used to guide discussion about this process III Products of dissolution the Vernier Logger Pro system will be used with conductivity probe to explore the macroscopic scale results of dissolution IV Solubility properties A large variety of ionic solids will be mixed with water to determine compounds that dissolve and those that do not Note about experiment sequence there are a limited number of laptops available in the lab Some aspects of this experiment require the laptop some do not It may be necessary that you do various parts of the lab out of sequence relative to how they appear in the manual As much as possible complete one of the three activities before moving on to the next one If you find it necessary to do the experiments out of sequence spend some time considering your results when you are done to see how one part flows into the next I Visualization of Liquids and Solids 1 Use Atomic Microscope to explore liquids which you may have examined earlier in the semester solids crystals and ionic crystals A Clusters Experiment Group3D Plus Experiment Title Freeplay 3D Add 3 Kr atoms Turn on Interatomic Potentials cool the temperature just a little above the coldest speed up the program and wait for the 3 atoms to cluster A 1 Which shape seems to be the most stable Ionic 1 1 If you were to add a fourth atom what shape would you predict to form A 2 What shape do you predict would



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