Question

calculeaza ce cantitate de metan rezulta prin reactia direct dintre carbon si hidrogen daca s a folosit hidrogenul obtinut prin reactia dintre 360 g acid clorhidric 12 % si zinc

Answer 1

........43,2g.................xg
Zn+2HCl->ZnCl2+H2
........36,5..................2
2,3g...........y
2H2+C->CH4
2×2............16
C=md/ms×100
md=c×ms/100
md=12×360/100=43,2g
MHCl=AH+ACl=1+35,5=36,5g/mol
MH2=2AH=2g/mol
x=43,2×2/36,5=2,3g
MCH4=Ac+4Ah=12+4=16g/mol
y=(16×2,3)/(2×2)=9,2g