\(n_{O_2}=\dfrac{9.6}{32}=0.3\left(mol\right)\)
\(2KClO_3\underrightarrow{^{^{t^0}}}2KCl+3O_2\)
\(a.\)
\(n_{KClO_3}=n_{KCl}=\dfrac{2}{3}\cdot n_{O_2}=\dfrac{2}{3}\cdot0.3=0.2\left(mol\right)\)
\(m_{KClO_3}=0.2\cdot122.5=24.5\left(g\right)\)
\(b.\)
\(m_{KCl}=0.2\cdot74.5=14.9\left(g\right)\)
\(a,n_{O_2}=\dfrac{9,6}{32}=0,3(mol)\\ 2KClO_3\xrightarrow[MnO_2]{t^o}2KCl+3O_2\\ \Rightarrow n_{KClO_3}=\dfrac{2}{3}n_{O_2}=0,2(mol)\\ \Rightarrow m_{KClO_3}=0,2.122,5=24,5(g)\\ b,n_{KCl}=n_{KClO_3}=0,2(mol)\\ \Rightarrow m_{KCl}=0,2.74,5=14,9(g)\)
a) \(n_{O_2}=\dfrac{9,6}{32}=0,3\left(mol\right)\)
PTHH: 2KClO3 --to--> 2KCl + 3O2
______0,2<---------------0,2<--0,3
=> mKClO3 = 0,2.122,5=24,5 (g)
b) mKCl = 0,2.74,5 = 14,9 (g)