Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions

Calculate the mass of oxygen obtained by complete decomposition of10kg of pure potassium chlorate (Atomic mass K=39, O=16 and Cl = 35.5)



1 mole of 
KClO3 = 39+35.5+48= 122.5g
10kg of KClO3 = 81.6 moles
1mole of KClO3 on decomposition gives 48g of oxygen
81.6 moles of KClO3 on decomposition gives 3916.8g of oxygen 

0 0 0
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts