The following reaction takes place:
2KClO3 -> 2KCl + 3O2
How many grams of O2 are produced when 175.0g of the KClO3 react?
2KClO3(s) --> 2KCl(s) + 3O2(g)
For this kind of problem, when you react 175 g of KClO3, first find moles first.
molecular weight ...
The solution provides clear reasoning behind each step of the calculations necessary to find how many grams of O2 are produced from the described reaction, working with moles and mass conversions.