Asked by Morgan

Calculate the weight of potassium chlorate required to prepare 380 mL of wet oxygen collected over water at 20 degrees C and 750 mm of Hg.
Answered by DrBob222
Use PV = nRT to convert 380 mL of wet oxygen to dry oxygen at STP. Then use this example.
http://www.jiskha.com/science/chemistry/stoichiometry.html