Question

10. Quais são as massas molares?

a) C6H12O6 (glicose)
b) K4Fe ( CN )6 ( ferrocianeto de potássio )
c) C12H22O11 ( sacarose)

Answer 1

Glicose:
C=12x6=72
O=16x6=96
H=1x12=12

72+96+12=180
 
Ferrocianeto de Potássio:
C=12x6=72
N=14x6=84
K=39x4=156
Fe=55,8x1=55,8

72+84+156+55,8=367,5
 
Sacarose:
C=12x12=144
H=1x22=22
O=16x11=176

144+22+176=342

Answer 2

Glicose:

C=12x6=72

O=16x6=96

H=1x12=12

72+96+12=180

 

Ferrocianeto de Potássio:

C=12x6=72

N=14x6=84

K=39x4=156

Fe=55,8x1=55,8

72+84+156+55,8=367,5

 

Sacarose:

C=12x12=144

H=1x22=22

O=16x11=176

144+22+176=342