2. Hanging on the wall of the REACTOR laboratory is a periodic chart. Click on it to open it up. Find the elements K, Cl and O, and click on each one to find their atomic weights. Use these to calculate a theoretical mass percent of oxygen in KClO₃ according to:

theoretical mass percent of oxygen = (mass of 3 oxygen atoms) / (mass of KClO₃)

Question

2. Hanging on the wall of the REACTOR laboratory is a periodic chart. Click on it to open it up. Find the elements K, Cl and O, and click on each one to find their atomic weights. Use these to calculate a theoretical mass percent of oxygen in KClO₃ according to:

     theoretical mass percent of oxygen = (mass of 3 oxygen atoms) / (mass of KClO₃)

anonymous · Answer

Obviously, you just need a periodic table. This is part of an online lab.