Theo đề bài ta có : \(\left\{{}\begin{matrix}nC=\dfrac{48}{12}=4\left(mol\right)\\nO2=\dfrac{6,72}{22,4}=0,3\left(moL\right)\end{matrix}\right.\)
PTHH :
\(C+O2-^{t0}->CO2\)
0,3mol..0,3mol...0,3mol
Theo PTHH ta có :
\(nC=\dfrac{4}{1}mol>nO2=\dfrac{0,3}{1}mol=>nC\left(d\text{ư}\right)\) ( tính theo nO2 )
=> \(\left\{{}\begin{matrix}mC\left(d\text{ư}\right)=\left(4-0,3\right).12=44,4\left(g\right)\\VCo2\left(\text{đ}ktc\right)=0,3.22,4=6,72\left(l\right)\end{matrix}\right.\)