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Below is a free excerpt of our term paper on Decomposition
Decomposition
12/09/96
Purpose: In this lab we will observe the products of decomposition of potassium
perchlorate (KClO4). We will then predict from our results the correct chemical
reaction equation.
Procedure: 1. Weigh out about 4.0g of KClO4 in a test tube. Record the
accurate weight below. Product Weight Before Weight After Mass of Test tube +
KClO4 41.5g 39.8g Mass of Test tube 37.5g 37.5 Mass of KClO4
4.0g 2.3g 2. Set up the apparatus shown below.
3. Gently heat the test tube containing the potassium perchlorate. Gas should
begin to collect in the collection bottle. Record all observation. 4. Once the
reaction is complete, no more gas give off, allow the test tube to cool. While
the test tube is cooling test the gas in the collection bottle with glowing
splint. Caution: Do not leave the rubber tubing down in the water trough during
cooling or you will experience back-up. 5. After the test tube has
cooled weigh it on a balance. What is the change in mass?......
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Title: Decomposition
Approximate Word Count: 277
Approximate Pages: 2 (250 words per double-spaced page)
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Decomposition
Decomposition. Decomposition 12/09/96 Purpose: In this lab we will observe the
products of decomposition of potassium perchlorate (KClO4). ... ... -
Decomposition
Decomposition. Decomposition 12/09/96 Purpose: In this lab we will observe the
products of decomposition of potassium perchlorate (KClO4). ... ...
