Potassium chlorate, KClO3, is used in fireworks and explosives. It can be prepared by bubbling chlorine into

Question:

Potassium chlorate, KClO3, is used in fireworks and explosives. It can be prepared by bubbling chlorine into hot aqueous potassium hydroxide; KCl(aq) and H2O are the other products in the reaction. How many grams of KClO3 can be obtained from 138 L of Cl2 whose pressure is 784 mmHg at 25oC?