Răspunsuri

2014-04-03T17:42:16+03:00
Avem astfel amestec:
Metan-x
etan-2x
propan-x
4x este suma lor si reprezinta nr moli de amestec
n=v/vm->n=1/22.4=0.04 moli 
0.04=4x->x=0.01
n=m/M-> m=M*n si faci calcule..:)