Calculate the Mass of oxygen which would be envove on heating 5g of potassium trioxochlorate v

3 answers

Yes
Please
impatient much?
2KClO3 ==> 2KCl + 3O2
so, how many moles of KClO3 in 5g?
The equation tells you it will produce 3/2 that many moles of O2
so how many grams is that?