Here is a link for solving stoichiometry problems; HOWEVER, I don't know how in the world you intend to get glycogen out of KClO3. There must be more to the problem than what you've posted.
http://www.jiskha.com/science/chemistry/stoichiometry.html
CALCULATE THE NUMBERS OF MOLES OF POTASSIUM CHLORATE THAT MUST DECOMPOSE TO PRODUCE POTASSIUM CHLORIDE AND 1.80 MOLES OF GLYCOGEN GAS
2 answers
stoichiometrt