a) PTHH : \(2KClO_3\overset{t^o}{\rightarrow}2KCl+3O^2\)
b) \(n_{KClO_3}=\dfrac{m}{M}=\dfrac{24,5}{122,5}=0,2\left(mol\right)\)
\(n_{KCl}=\dfrac{m}{M}=\dfrac{14,9}{74,5}=0,2\left(mol\right)\)
Theo PT : 2mol ........... 3mol
=> 0,2mol.................x(mol)
=> \(n_{O_2}=x=\dfrac{0,2.3}{2}=0,3\left(mol\right)\)
=> \(V_{O_2}=n.22,4=0,3.22,4=6,72\left(lít\right)\)
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