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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.

Water - H2O

  98

  18

  58.5

  160

 
Hint      

2.

Sodium hydroxide - NaOH

  40

  98

  159.5

  36.5

 
Hint      

3.

Sulfur dioxide - SO2

  58.5

  64

  159.5

  98

 
Hint      

4.

Calcium carbonate - CaCO3

  100

  76

  58.5

  101

 
Hint      

5.

Hydrochloric acid - HCl

  160

  159.5

  58.5

  36.5

 
Hint      

6.

Ammonium sulfate - (NH4)2SO4

  58.5

  101

  132

  56

 
Hint      

7.

Potassium permanganate - KMnO4

  36.5

  158

  159.5

  40

 
Hint      


 
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