that is alot of KNO3.
For those who don't understand that formula, the 3 is supposed to be subscriped and it is usually written as KNO
3 The K is the Atomic symbol for Potassium, the N is a Nitrogen symbol, and the O is for Oxygen, 3 oxygen to one Nitrogen, to make it Nitr-ate, which makes it a chemical compound, that's what the 3 is for at the end of oxygen, to bond completely with the Nitrogen forming a molecule.