UPDATE

Here's what has happened during the last 3 classes:

We had a....

Hydrate Lab

 Discussion: Hydrates are ionic compounds that contain an inorganic salt compound loosely bound to water. The purpose of this experiment is to determine the empirical formula of a hydrate. In this lab we determined the anhydrous (without water) mass of the hydrate. We compared this with the actual mass of water that should have been present. 

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 Materials Used: - Bunsen burner
- Test tube
- Test tube rack
- Test tube clamp
- Weight scale Procedure 1. Fill a test tube about 1 cm with the hydrate
2. Carefully place the test tube on the scale and record the mass of the hydrate and test tube
3.
4. Pick up the test tube with the clamps and carefully hold it in above the Bunsen burner
5. Gently heat the test tube by moving the test tube in and out of the flame for about 5 minutes or until all the water has boiled away
6. Carefully re-weigh the test tube ensuring none of the chemicals inside spill Using extreme caution, connect and light your Bunsen burner. Adjust the gas flow until the flame is about 5 cm tall

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The following class after the Hydrate Lab, we had a test for Unit 2: The Atomic Theory

During today's class (November 12th, 2010), we had special guests (Japanese students) that visited us from Japan. We had very little time to do anything, however, so we went over our test which was fairly o.k.

-Ren Flores