This is a short summary of the paper
|
Decomposition
Start of Term Paper
Purpose: In this lab we will observe the products of 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
accu .... Middle of Term Paper
... 5. After the test tube has
cooled weigh it on a balance. What is the change in mass?
Observations: Oxygen flowed from the test tube into the bottle of water, forcing
the water out. Burning ember re-ignited when placed into the bottle of O2.
Calculations: 1. The number of moles of KClO4 that we began with is .03 moles.
4.0g ¸ 138.6g/mol = .03 moles 2. The number of moles of O2 that were present in
our sample of KClO4 was .06 moles. 1.9g ¸ 32g/mole = .06 moles 3. The number of
moles of O2 lost is .02 moles. 1.7g ¸ 32g/mol = .05 moles 4. KClO4 à KCl + 202
4.0g ¸ 138.6g/mol = .03 moles ´ 202 ¸ KClO4 = .06 moles ´ 32g = 1.9g 5 Percent
Y ... |
| Number of Words: 253 |
Approximate Pages: 1 |
|
| Length |
Price |
Membership Type |
Sign Up |
| 30 days |
$19.95 |
recurring |
| 90 days |
$39.95 |
recurring |
| 180 days |
$69.95 |
non-recurring |
|
|
Got a paper due soon? Help is here! At WebTermPapers.com, we are the web's leading resource for term papers, essays, book reports, and more.
Whether you are in high school, college, or graduate school, you will find something from our 45,000+ online essay database to help you out.
Just click the "Subscribe" button above and for as low as $19.95, you can download all the term papers you will ever need.
