Question

DETERMINE AS MASSAS MOLECULARES DAS SUBSTÂNCIAS ABAIXO:
A) C6H7O2 R:
B) C9H6N2O2 R:
C) C6HCI3 R:

Answer 1

C = 12 ; H = 1 ; O = 16 N =14 ; Cl = 35

a)  C₆H₇O₂
12×6 + 7 + 16×2
72 + 7 + 32 = 111 g/mol

b) C₉H₆N₂O₂
12×9 + 6 + 14×2 + 16×2
108 + 6 + 28 + 32 = 174 g/mol

c) C₆HCl₃
12×6 + 1 + 35
72 + 1 + 35 = 108 g/mol