Răspuns:
niu,CO2=V/Vm= 17,92/22,4mol=0,8molCO2----> niu,C=0,8mol
niu,H2O=m/M=9/18mol= 0,5mol---> niu,H= 1mol
xCH2=CH-CH=CH2+ yCH(C6H5)=CH2--->
-[-CH2-CH=CH-CH2--]x--[-C(C6H5)-CH2--]y
0,8=4x+8y
1= 6x+8y
x=0,1mol y=0,05mol
x/y=2/1
m,copolimer= 0,1molxM,buradienA + 0,05molxM,stiren
= 0,1x54+0,05x104=> 10,6g
Explicație: