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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.

Zinc sulfite - ZnSO3

  58.5

  145

  17

  101

 
Hint      

2.

Cupric sulfate (Copper [II] sulfate) - CuSO4

  56

  159.5

  17

  160

 
Hint      

3.

Hydrogen peroxide - H2O2

  160

  34

  64

  40

 
Hint      

4.

Potassium nitrate - KNO3

  101

  36.5

  18

  294

 
Hint      

5.

Potassium hydroxide - KOH

  18

  160

  76

  56

 
Hint      

6.

Carbon dioxide - CO2

  159.5

  44

  36.5

  40

 
Hint      

7.

Calcium carbonate - CaCO3

  36.5

  145

  158

  100

 
Hint      


 
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