\(n_{O_2}=\dfrac{3.36}{22.4}=0.15\left(mol\right)\)
\(2KClO_3\underrightarrow{t^o}2KCl+3O_2\)
\(0,1..............0,1.......0,15\)
\(m_{KClO_3}=0.1\cdot122.5=12.25\left(g\right)\)
\(m_{KCl}=0,1\cdot74,5=7,45\left(g\right)\)
\(a) 2KClO_3 \xrightarrow{t^o} 2KCl + 3O_2\)
b)
Theo PTHH :
\(n_{KCl} = \dfrac{2}{3}n_{O_2} = \dfrac{2}{3}.\dfrac{3,36}{22,4} = 0,1(mol)\\ \Rightarrow m_{KCl} = 0,1.74,5 = 7,45(gam)\)
c)
\(n_{KClO_3} = n_{KCl} = 0,1(mol)\\ \Rightarrow m_{KClO_3} = 0,1.122,5 = 12,25(gam)\)