5/.
C-C-C-C-C-C,
C-C(CH3)-C-C-C ,
C-C-C(CH3)-C-C,
C-C(CH3)2-C-C,
C-C(CH3)-C(CH3)-C
=> 5 => D
6/.
1 L x L
C3H8 + 5O2 --> 3CO2 + 4H2O
22,4 5x22,4
=> x = 5 L O2
Vaer = 5Vo2 = 5x5 = 25 L aer
=> C.
7/.
10 L / 22,4 = 0,446 moli amestec C3H8 + C4H10
36 L / 22,4 = 1,607 moli CO2
a moli 3a moli
C3H8 + 5O2 --> 3CO2 + 4H2O
1 3
b moli 4b moli
C4H10 + 13/2O2 --> 4CO2 + 5H2O
1 4
=> 3a + 4b = 1,607
a + b = 0,446 => b = 0,446-a
=> 3a + 4(0,446-a) = 1,607
=> a = 0,177/1 = 0,177 moli C3H8
=> b = 0,446 - 0,177 = 0,269 moli C4H10
% volume = % molare la gaze
=> 0,269x100/0,446 = 60%
=> C.
8/.
CH4 + Cl2 + Br2 --> CH3Cl + CH3Br + CH2Cl2 + CH2Br2 + CHCl3 + CHBr3 + CCl4 + CBr4 + CH2ClBr + CHCl2Br + CHBr2Cl + CCl3Br + CBr3Cl + CCl2Br2
=> C.
