Chemistry Question, Please Help!?

[vousorange]

2KClO3 --> 2KCl+3O2

How many grams of oxygen gas would be produced if 23.0 g of potassium chlorate react?

 

[Peter]

23.0/ (35.45+39+48) = x

x (3 mols of O2)/(2Mols of KClO3) = Y

find X, and go through those steps and find Y, y will be the inside of O2 gas produced.