Question

Urgent pls am mare nevie

Answer 1

calculez moli hidrocarbura CxHy, stiind volumul molar Vm=22,4 l/mol

niu=V/Vm= 0,672/22,4mol= 0,03mol  

calculez moli Co2, si C ,stiind  M,CO2= 44g/ml

niu= m/M= 6,6g/44g/mol=-0,15molCO2---> 0,15mol C

calculez moli H2O  si H

niu=V/Vm= 4,032/22,4 mol= 0,18molH2O-------> 0,36molH

CALCULEZ moli C si H din 1mol CxHy

0,03mol hidroc...........0,15molC........0,36mol H

1MOL........................X= 5........................Y=12

F. MOLECULARA :  C5H12-PENTAN

CH3-CH2-CH2-CH2-CH3   normal pentan

    CH3-CH(CH3)-CH2-CH3 izopentan sau 2metil butan