Warning: Use of undefined constant referer - assumed 'referer' (this will throw an Error in a future version of PHP) in /usr/home/essaywo/public_html/essays on line 102

Warning: Use of undefined constant host - assumed 'host' (this will throw an Error in a future version of PHP) in /usr/home/essaywo/public_html/essays on line 105

Warning: Cannot modify header information - headers already sent by (output started at /usr/home/essaywo/public_html/essays:102) in /usr/home/essaywo/public_html/essays on line 106

Warning: Cannot modify header information - headers already sent by (output started at /usr/home/essaywo/public_html/essays:102) in /usr/home/essaywo/public_html/essays on line 109
Decomposition - College Paper

Decomposition

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
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 ...

Want to read the rest of this paper?
Join Essayworld today to view this entire essay
and over 50,000 other term papers

= .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 � KCl + 202
4.0g � 138.6g/mol = .03 moles � 202 � KClO4 = .06 moles � 32g = 1.9g 5 Percent
Yield: 89% O2 lost 1.7g � O2 Expected ...

Get instant access to over 50,000 essays.
Write better papers. Get better grades.

Already a member? Login

CITE THIS PAGE:

APA
MLA
Chicago
Turabian

Decomposition. (2008, December 17). Retrieved November 30, 2024, from http://www.essayworld.com/essays/Decomposition/94761

"Decomposition." Essayworld.com. Essayworld.com, 17 Dec. 2008. Web. 30 Nov. 2024. <http://www.essayworld.com/essays/Decomposition/94761>

"Decomposition." Essayworld.com. December 17, 2008. Accessed November 30, 2024. http://www.essayworld.com/essays/Decomposition/94761.

JOIN NOW

Join today and get instant access to this and 50,000+ other essays

PAPER DETAILS

Added: 12/17/2008 11:40:21 AM
Category: Science & Nature
Type: Free Paper
Words: 253
Pages: 1

Save |

Report

SHARE THIS PAPER

SAVED ESSAYS

Save and find your favorite essays easier