ro=ms/V => ms=ro*V = 1,1*100 = 110g sol HCl
C=md/ms*100 => md=C*ms/100 = 20*110/100 = 22g HCl
n=md/M = 22/36,5 = 0,6 moli HCl
ms final = 110+600 = 710g sol => A- adevarat
B)- fals
C) n=m/M = 600/18 = 33,33 moli H2O + 0,6 moli 33,933 moli solutie..
=> C-fals
D) Vsf = 100+700 = 0,7 L
Cmf = n/Vsf = 0,6/0,7 = 0,861 moli/L sau 8,61*10^(-1) mol/L => D-adevarat
E) Cf=mdf/msf*100 = 22/710*100 = 3,098%