Potassium nitrate decomposes on heating, producing potassium oxide and gaseous nitrogen and oxygen:

4KNO₃(s) 2K₂O(s) + 2N₂₍g) + 5O₂(g)

To produce 23.8 kg of O₂, how many

a)moles of KNO₃ must be heated?

b) grams of KNO₃ must be heated?

4KNO3(s)2K2O(s)+2N2(g)+5O2(g) To produce 23.8kg of O2, how many (a) moles of KNO3 must be heated? mol (b) grams of KNO3 must be heated? g