Bài 1:
Ta có: \(n_{C_2H_2}=\dfrac{5,6}{22,4}=0,25\left(mol\right)\)
PT: \(2C_2H_2+5O_2\underrightarrow{t^O}4CO_2+2H_2O\)
a, \(n_{O_2}=\dfrac{5}{2}n_{C_2H_2}=0,625\left(mol\right)\Rightarrow m_{O_2}=0,625.32=20\left(g\right)\)
b, \(n_{CO_2}=2n_{C_2H_2}=0,5\left(mol\right)\Rightarrow m_{CO_2}=0,5.44=22\left(g\right)\)
Bài 2:
Ta có: \(\%V_{C_2H_2}=\%V_{CH_4}=50\%\) (do tỉ lệ số mol 2 khí bằng nhau)