Masa molara a acidului cinhidric
M=(1gH+12gC+14gN)/mol=27g/mol
Acest calcul ne indica compozitia acidului
27g contine...... 1gH..... 14gN.......... 12gC
7,83g contine....0,290g.............4,06..............(7,83-0,29-4,06)g=3,48g
3,36g contine................................................x
x= 3,36x3,48/7,83 gC--------------------------cALCULEAZA 111