\(n_{KClO_3}=\dfrac{73,5}{122,5}=0,6\left(mol\right)\)
\(n_{KCl}=\dfrac{33,5}{74,5}=\dfrac{67}{149}\left(mol\right)\)
PTHH: 2KClO3 --to--> 2KCl + 3O2
a------------>a
4KClO3 --to--> 3KClO4 + KCl
b-------------------->0,25b
=> \(\left\{{}\begin{matrix}a+b=0,6\\a+0,25b=\dfrac{67}{149}\end{matrix}\right.\)
=> \(\left\{{}\begin{matrix}a=0,39955\left(mol\right)\\b=0,20045\left(mol\right)\end{matrix}\right.\)
=> \(\left\{{}\begin{matrix}\%_{phân.hủy.theo.\left(a\right)}=\dfrac{0,39955}{0,6}.100\%=66,5917\%\\\%_{phân.hủy.theo.\left(b\right)}=\dfrac{0,20045}{0,6}.100\%=33,4083\%\end{matrix}\right.\)