Homework Help: Chemistry

Posted by Katie on Tuesday, July 5, 2011 at 12:57am.

PLease help
how many grams of potassium chlorate decomposes to potassium chloride and 638 mL of O2 at 128°C and 752 torr?

the formula given:
2KClO3(s) 2KCl(s) + 3O2(g)

Chemistry - DrBob222, Tuesday, July 5, 2011 at 3:39pm
Here is a solved example of the problem you have. Only the numbers are different. You will need to find moles O2 by using PV = nRT
Chemistry - DrBob222, Tuesday, July 5, 2011 at 3:40pm
oops.
http://www.jiskha.com/science/chemistry/stoichiometry.html

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