CHEM 1&2 Lab Manual & worksheets pg 56

CHEM 1&2 Lab Manual & worksheets pg 56 -...

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Experiment 2: Compound Types General Chemistry I and II Lab Manual Dakota State University Page 56 of 232 Melting Points: Here we are not interested in absolute melting point temperatures, but rather, relative melting points. Place a VERY SMALL AMOUNT of each solid (just enough to see it) onto a scoopula, close enough that they can be viewed and heated more or less at the same time, but far enough apart that you can easily remember which is which. Light a Bunsen burner, and, being very careful not to burn yourself, pass the scoopula through the flame several times.
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Unformatted text preview: Note the order of melting (which melts first, second, etc) and whether or not any appear to burn rather than melt. Record your observations. Remember that the compounds that melt first have the lower melting points. You might not be able to get all of the compounds to melt; these are all very high melting point compounds. Calculations: Based on the results from the procedure, categorize each compound as non-polar covalent, polar covalent, or ionic....
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This note was uploaded on 01/27/2012 for the course CHM 2045 taught by Professor Josephwalter during the Fall '11 term at Dakota State.

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