Paper Details  
 
   

2 Pages
450 Words

 
   
 

Create a new account

It's simple, and free.

Potassium Chlorate Procedure

theoretical value 39.17

4. The experimental result did not match the theoretical value: there was an experimental error of 45 %. This is a large error, and may not have been due to experimental error. The KClO3 may have had water molecules attached, and these would have constituted part of the original 20g weighed out. Therefore, as the mixture was heated with catalyst, the water would have evaporated as the oxygen molecules were given off, adding to the reduction in weight of the residual KCl. This would have given a disproportionately high value for the apparent oxygen released from the compound. This would give an erroneously high value for the mass percent of oxygen in the compound. Other contaminants may have been present in the crucible which may have contributed to the error.

Law of definite proportions. 92005). Retrieved July 6, 2005 from:

http://www.thefreedictionary.com/law%20of%20definite%20

Manganese dioxide. (2005). Retrieved July 6, 2005 from:

http://www.answers.com/topic/manganese-iv-oxide

Mole handout II. (2005). Retrieved July 6, 2005 from:

http://www.nightingale.org/teachers/fuller/Chemistry%202011/

Potassium chlorate. 92005). Retrieved July 6, 2005 from:

http://encycl.opentopia.com/term/Potassium.chlorate

...

Page 1 of 2 Next >

    More on Potassium Chlorate Procedure...

    Loading...
APA     MLA     Chicago
Potassium Chlorate Procedure. (1969, December 31). In LotsofEssays.com. Retrieved 20:07, November 23, 2014, from http://www.collegetermpapers.com/viewpaper/1303934763.html
 
Copyright © 1999 - 2014 CollegeTermPapers.com. All Rights Reserved. DMCA