PTHH: \(C+O_2\rightarrow CO_2\)
Theo ĐLBTKL:
\(m_C+m_{O2}=m_{CO2}\)
\(\Rightarrow m_{O2}=27-16=11\left(g\right)\)
\(\Rightarrow n_{O2}=\dfrac{11}{32}\left(mol\right)\)
\(\Rightarrow V_{O2}=\dfrac{11}{32}\cdot22,4=7,7\left(l\right)\)
PTHH: C + O2 -> CO2
theo đầu bài ta có: mCO2 - mC =mO2
-> mO2= 27-16=11(g)
-> nO2=11÷32=11/32(mol)
-> VO2=11/32×22,4=7,7(l)