Question
How many grams of KClO3 must react to form 42.0 mL?
Answers
Yeah
At STP moles O2 = 0.042 L x 22.4 =0.941
Moles KClO3 = 0.941 x 2/3 =0.627
mass KClO3 = 0.627 mol x 122.55 g/mol=76.8 g
Moles KClO3 = 0.941 x 2/3 =0.627
mass KClO3 = 0.627 mol x 122.55 g/mol=76.8 g