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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.

Ferric oxide - Fe2O3

  158

  160

  36.5

  18

 
Hint      

2.

Aluminum phosphate - AlPO4

  122

  159.5

  64

  56

 
Hint      

3.

Water - H2O

  132

  18

  63

  158

 
Hint      

4.

Sulfuric acid - H2SO4

  98

  132

  122

  40

 
Hint      

5.

Nitric acid - HNO3

  17

  36.5

  63

  101

 
Hint      

6.

Zinc sulfite - ZnSO3

  58.5

  34

  145

  36.5

 
Hint      

7.

Ammonia - NH3

  17

  160

  64

  132

 
Hint      


 
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