Bài 1 :
nO2 = 4.48/22.4=0.2 mol
=> mO2 = 6.4g
nCO2 = 2.24/22.4=0.1 mol
=> mCO2 = 4.4g
ADĐLBTKL :
mA + mO2 = mCO2 + mH2O
m + 6.4 = 4.4 + 3.6
=> m = 1.6g
Bài 2 :
Đặt : nCO2 = x mol
nH2O= 2x mol
nO2 = 44.8/22.4=2 mol
=> mO2 = 64g
X + O2 -to-> CO2 + H2O
ADĐLBTKL :
mX + mO2 = mCO2 + mH2O
16 + 64 = 44x + 18*2x
=> x = 1
mCO2 = 44g
mH2O = 36g