Răspuns:
ms=1000mlx0,76g/ml=760g
c=mdx100/ms---> md= 94x760/100g=714,4g alcool
M,alcool= 46g /mol M,butadiena =54g/mol
2x46g alcool..........54gbutadiena
714,4g.............................x= m=419,32g m teoretica
m,practica= 419,32x80/100=.................
Explicație: