\(a) 2KClO_3 \xrightarrow{t^o,MnO_2} 2KCl +3 O_2\\ n_{O_2} = \dfrac{3}{2}n_{KClO_3} = \dfrac{3}{2}. \dfrac{9,8}{122,5} = 0,12(mol)\\ \Rightarrow V_{O_2} = 0,12.22,4 = 2,688(lít)\\ b) 2H_2O \xrightarrow{điện\ phân} 2H_2 + O_2\\ n_{O_2} = \dfrac{1}{2}n_{H_2O} = \dfrac{1}{2}. \dfrac{36.1000}{18} = 1000(mol)\\ \Rightarrow V_{O_2} = 1000.22,4 = 22400(lít)\)
\(â.\)
\(n_{KClO_3}=\dfrac{9.8}{122.5}=0.08\left(mol\right)\)
\(2KClO_3\underrightarrow{t^0}2KCl+3O_2\)
\(0.08........................0.12\)
\(V_{O_2}=0.12\cdot22.4=2.688\left(l\right)\)
\(b.\)
\(n_{H_2O}=\dfrac{36\cdot1000}{18}=2000\left(mol\right)\)
\(2H_2O\underrightarrow{t^0}2H_2+O_2\)
\(2000..................1000\)
\(V_{O_2}=1000\cdot22.4=22400\left(l\right)\)
