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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.

Calcium sulfate - CaSO4

  18

  136

  122

  100

 
Hint      

2.

Water - H2O

  18

  34

  158

  40

 
Hint      

3.

Sodium chloride - NaCl

  145

  58.5

  36.5

  101

 
Hint      

4.

Cupric sulfate (Copper [II] sulfate) - CuSO4

  18

  158

  159.5

  58.5

 
Hint      

5.

Aluminum phosphate - AlPO4

  44

  36.5

  294

  122

 
Hint      

6.

Magnesium oxide - MgO

  40

  56

  17

  132

 
Hint      

7.

Ammonia - NH3

  34

  58.5

  17

  159.5

 
Hint      


 
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