Question

in urma aditiei acidului clorhidric la acetilena se obtine un compus A care contine 71,71% Cl.
Determinati formula moleculara a substantei
Scrie Ecuatia chimica

Answer 1

CH≡CH+HCl---> CH2=CHCl
CH2=CHCl+HCl---> CH3-CHCl2
treebuie verificat care din cei doi produsi de reactie are 71,71%Cl
M= (24gC +3gH+35,5gCl)/mol =62,5g/mol CH2=CHCl
M= (24gC +4gH +71gCl)/mol=99g/mol CH3-CHCl2
62,5g .CH2=CHCl...................35,5g clor
100g.......................................71,71 ------> 71,71x62,5= 100x35,5
sau
99g.CH3-CHCl2.....................71gclor
100g......................             71,71-----> 99x71,71= 100x71
verifica care egalitate se respecta si afli care este produsul de reactie