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Chemistry : Molecular Weights of Chemical Compounds


What is the molecular weight of each chemical compound whose formula is given below?
Given Atomic Weights:
H = 1 ; C = 12 ; N = 14 ; O = 16 ; Na = 23 ; Mg = 24 ; Al = 27 ;  P = 31 ; S = 32 ;
Cl = 35.5 ; K = 39 ; Ca = 40; Cr = 52; Mn = 55 ; Fe = 56 ; Cu = 63.5 ; Zn = 65 

Formats Info Page Quiz Review

Your Performance  

1.

Nitric acid - HNO3

  63

  58.5

  64

  136

 
Hint      

2.

Potassium dichromate - K2Cr2O7

  136

  294

  159.5

  63

 
Hint      

3.

Ammonia - NH3

  100

  122

  101

  17

 
Hint      

4.

Zinc sulfite - ZnSO3

  44

  18

  145

  76

 
Hint      

5.

Calcium sulfate - CaSO4

  34

  136

  44

  132

 
Hint      

6.

Carbon dioxide - CO2

  132

  36.5

  44

  145

 
Hint      

7.

Sulfuric acid - H2SO4

  18

  98

  100

  160

 
Hint      


 
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