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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.

Hydrogen peroxide - H2O2

  76

  34

  98

  160

 
Hint      

2.

Potassium dichromate - K2Cr2O7

  58.5

  36.5

  98

  294

 
Hint      

3.

Nitric acid - HNO3

  294

  34

  63

  122

 
Hint      

4.

Calcium carbonate - CaCO3

  101

  18

  100

  40

 
Hint      

5.

Sulfur dioxide - SO2

  98

  64

  122

  44

 
Hint      

6.

Ammonium sulfate - (NH4)2SO4

  40

  158

  132

  145

 
Hint      

7.

Calcium sulfate - CaSO4

  44

  132

  34

  136

 
Hint      


 
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