\(C+O2-->CO2\)
a) \(n_{O2}=\frac{6,4}{32}=0,2\left(mol\right)\)
\(n_{CO2}=n_{O2}=0,2\left(mol\right)\)
\(m_{CO2}=0,2.44=8,8\left(g\right)\)
b) \(n_C=\frac{6}{12}=0,5\left(mol\right)\)
\(nO2=\frac{19,2}{32}=0,6\left(mol\right)\)
--.> O2 dư
\(n_{CO2}=n_C=0,5\left(mol\right)\)
\(m_{CO2}=0,5.44=22\left(g\right)\)
a)
\(n_{O2}=\frac{6,4}{32}=0,2\left(mol\right)\)
Ta có: C + O2 → CO2
\(m_{CO2}=0,2.44=8,8\left(g\right)\)
b) \(n_C=\frac{6}{12}=0,5\left(mol\right)\)
\(n_{O2}=\frac{19,2}{32}=0,6\left(mol\right)\)
Nên O2 dư và nCO2 được tính theo nC
\(n_{CO2}=0,5\left(mol\right)\)
=> \(m_{CO2}=0,5.44=22\left(g\right)\)