số mol O2 là:
\(n_{O_2}=\frac{73,56}{22,4}=3,284\left(mol\right)\)
PTHH:\(2KClO_3\rightarrow2KCl+3O_2\)
\(m_{KClO_3}=n.M=\left(3,284.\frac{2}{3}\right).\left(39+35,5+16.3\right)=268,153\left(g\right)\)
\(m_{ }=n.M=\left(3,284.\frac{2}{3}\right).\left(39+35,5\right)=163,0805\left(g\right)\)(m chất rắn)
a) \(n_{O2}=\frac{73,56}{22,4}=\frac{1839}{560}\left(mol\right)\)
\(2KClO_3\underrightarrow{t^o}2KCl+3O_2\)
613/280__________1839/560(mol)
b) \(m_{KClO3}=\frac{613}{280}.122,5=268,1875\left(g\right)\)
c) \(m_{KCl}=\frac{613}{280}.74,5=163,1\left(g\right)\)
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