February 27, 2017

Homework Help: Chemistry

Posted by Ana on Tuesday, March 2, 2010 at 9:47pm.

2KClO3 --> 2KCl + 3O2

What mass of O2 can be made from heating 125 g of KClO3?

I know that the answer is 49 g O2 but I keep getting a completely different answer, can anyone show me what I'm doing wrong?
Please & Thank you

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