Question

Ma poate ajuta cineva la prima problema de pe fișa? Multumesc frumos!

Answer 1

arena mononucleara = CnH2n-8

=> 100% ................................ 91,525% C

  14n-8 ................................ 12n C

=> n = 9 =>

A = benzen = C6H6

B = izopropilbenzen (cumen) C6H5-CH(CH3)2 = C9H10

C = izopropenilbenzen C6H5-C(CH3)=CH2 = C9H10

a)

1 mol B ...........cantareste 118 g ....... si are 9x12g C = 108 g

1 mol C ............cantareste 118 g ........ si are 9x12g C = 108 g

=> 236 g amestec ................. 216 g C

 100% amestec .................... a = 91,525% C

b)

cantareste 118 g ....... si are 9x12g C = 108 g

cantareste 118 g ........ si are 9x12g C = 108 g

=> 236 g amestec ................. 216 g C

 100% amestec .................... b = 91,525% C