\(\%m_{CaCO_3}=100\%-15\%=85\%\)
-> \(m_{CaCO_2}=\dfrac{200.85}{100}=170\left(g\right)\)
->\(n_{CaCO_3}=\dfrac{170}{100}=1,7\left(mol\right)\)
PTHH: \(CaCO_3\underrightarrow{t^o}CaO+CO_2\)
Theo pthh: \(n_{CaO}=n_{CaCO_3}=1,7\left(mol\right)\)
-> \(m_{CaO}=1,7.56=95,2\left(g\right)\)
Theo pthh: \(n_{CO_2}=n_{CaCO_3}=1,7\left(mol\right)\)
-> \(m_{CO_2}=1,7.44=74,8\left(g\right)\)
Mình thích thay acc mới vai:vvv