We never did anything even close to this in class, and i cant find help in the textbook, im desperate, please help me...
"Small quantities of oxygen gas are sometimes generated by heating KClO3 in the presence of MnO2 as a catalyst:
2KClO3(s) → 2KCl(s) + 3O2(g)
What volume (ml) of O2 is collected over water at 20.0 oC by the reaction of 0.261 g of KClO3 if the barometric pressure is 722.7 mm Hg
The vapor pressure of water at 20.0 oC is 17.5 mm Hg. "
2006-11-13
17:36:20
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3 answers
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asked by
Paul S
2
in
Science & Mathematics
➔ Chemistry
Where are these sililiar questions?...
2006-11-13
17:54:33 ·
update #1
Still dont know how to do it... sry, can you please explain in more detail?
2006-11-13
17:57:20 ·
update #2
I tried ur way and got the wrong method, right now im just checking if the numbers were calculated right, hopefully thats the problem
2006-11-13
18:20:26 ·
update #3