Question

Calcule el peso molecular de: (Respuestas con dos cifras decimales). a. KI b. H2SO4 c. HNO3 d. CH4 e. CuSO4

Answer 1

a) 
k----- 39 g/mol x 1= 39
l------- 127 g/mol x 1 = 127
 
39+127= 166
   = 166 g/mol
 
 b)
 H2----- 1 g/mol x 2 = 2
 S------- 32 g/mol x 1 = 32
 O4------- 16 g/mol x 4 = 64 
  = 98 g/mol
 
 C)
H------- 1 g/mol x 1 = 1
N------- 14 g/mol x 1 = 14
O3 ----- 16 g/mol x 3 = 48
= 63 g/mol 

D)
C = 12 g/mol x 1 = 12
H4 = 1 g/mol x 4 = 4
= 16 g/mol

E)

Cu= 63 g/mol x 1= 63
S= 32 g/mol  x 1 = 32
O4= 16  g/mol x 4 = 64
= 159 g/mol