Răspuns:
consider formula chimica generala a compusilor R-Cl
M,R-Cl= M,R+35,5=64,5--> M,R=29
daca cosider R , radicalul unei hidrocarburi saturate, CnH2n+1
M,=14n+1=29---> n=2
cei doi derivati sunt cloroetan(A) si omologul sau superior, cloropropan(B)
CH3-CH2CL+H2O---> CH3-CH2OH+HCL ori a moli
CH3-CH2-CH2C L+H2O----> CH3-CH2-CH2OH +HCL ori a moli
a(46g A+60gB)=169,6g----> a= 1,6mol
169,6g amestec........1,6x46gA...........1,6x60gB
100G.............................X.........................Y
X= 100X73,6/169,6g A=.........CALCULEAZA
Y= 100X96/169,6g B=.............CACULEAZA
Explicație: