Răspuns:
amestec; a moli C b moli S; a/b=4/1----> a= 4b
A,C= 12g/mol A,S= 32g/mol
12a+ 32b=160g---> 48b+32b=160----> b=2mol S a=8molC
C+ O2--->CO2 ori 8moli---> 8molO2
S+O2---> SO2 ORI2mol---> 2molO2
total 10molO2----> 100/20x10mol aer= 50mol aer
nr.moli de gaze obtinute: 8molCO2 + 2molSO2--> 10mol
10mol.......8molCo2........2molSO2
100.................X......................Y
X=80% CO2
Y=20%SO2
Explicație: