a) mC4H10= 0,8.20= 16(g)
mCH4= 0,2.16= 4(g)
b) nC4H10= 16/58= 8/29(mol)
nCH4= 4/16= 0,25(mol)
PTHH: (1) C4H10 + 13/2 O2 -to-> 4CO2 + 5 H2O
8/29_____________52/29______32/29____40/29(mol)
(2) CH4 + 2O2 -to-> CO2 + 2 H2O
0,25_____0,5_______0,25___0,5(mol)
nO2= 52/29 + 0,5=133/58 (mol)
=> mO2= 133/58. 32=\(\approx73,379\left(g\right)\)
c) mCO2= (32/29 + 0,25) . 44\(\approx59,552\left(g\right)\)
mH2O= (40/29 + 0,5).18\(\approx33,828\left(g\right)\)
=> m(chất sau p.ứ)= mCO2+ mH2O =... (Em tự tính nè)