CH≡C-CH=CH2 M=52g/mol
m=5,2g---> niu= 5,2g/52g/mol=0,1mol
1molecula are 3 legaturi pi
1mol are 3x6,023x10²³ legaturi pi
0,1mol are.........CALCULEAZA!!!!!
CH2=CH2 M=28g/mol
m=7g---> niu=7g/28g/mol=0,25mol
1 molecula are 2atC
1mol are 2x6,023x10²³at
o,25mol................CALCULEAZA !!!!!!!