Răspuns:
niu=V/Vm=44,8/22,4 mol=2mol etena
CH2=CH2+HOH---.>CH3-CH2OH
1mol...................................1mol
2mol....................................x= 2mol etanol
Metanol=46g/mol
m=niuxM=2X45g= 90g=mdizolvat
c= mdx100/ms---> ms= mdx100/c= 90x100/20g=450g solutie
Explicație: