Răspuns :
1. a) Pentru n=m=6 => C6H12O6 - glucoza
b) MC6H12O6=12*6+12+6*16=180g/mol
mC=12*6=72g ⇒ %C=mC/M*100=72/180*100=40%
mH=12*1=12g ⇒ %H=mH/M*100=12/180*100=6,666%
mO=16*6=96g ⇒ %O=mO/M*100=96/180*100=53,33%
c) Daca 1 mol C6H12O6 se gasesc 12g H
Atunci 3 moli ....................................x=12*3=36g H
d) n=md/M=>md=n*M=5*180=900g C6H12O6
roH2O=1g/cm3 ⇒ mH2O=1000g
ms=md+mH2O=900+1000=1900g sol. C6H12O6
Cp=md/ms*100=900/1900*100=47,368%
2) MH2SO4 = 2+32+64=98g/mol
1mol H2SO4.......................2gH
10 mol..............................20g H
MHCl=1+35,5g=35,5g/mol
1mol HCl.......................1gH
x=20mol........................20gH
n=m/M=>m=n*M=20*36,5=730g HCl (y)
b) MC6H12O6=12*6+12+6*16=180g/mol
mC=12*6=72g ⇒ %C=mC/M*100=72/180*100=40%
mH=12*1=12g ⇒ %H=mH/M*100=12/180*100=6,666%
mO=16*6=96g ⇒ %O=mO/M*100=96/180*100=53,33%
c) Daca 1 mol C6H12O6 se gasesc 12g H
Atunci 3 moli ....................................x=12*3=36g H
d) n=md/M=>md=n*M=5*180=900g C6H12O6
roH2O=1g/cm3 ⇒ mH2O=1000g
ms=md+mH2O=900+1000=1900g sol. C6H12O6
Cp=md/ms*100=900/1900*100=47,368%
2) MH2SO4 = 2+32+64=98g/mol
1mol H2SO4.......................2gH
10 mol..............................20g H
MHCl=1+35,5g=35,5g/mol
1mol HCl.......................1gH
x=20mol........................20gH
n=m/M=>m=n*M=20*36,5=730g HCl (y)