Calculate the mass of 1 atom of silver and 1 molecule of carbon dioxide.

The atomic mass of silver is 108 u and molar mass of silver is 108 g/mol. This means there are 6.023 X 1023 atoms of silver in 108 g of silver. Thus 

 6.023 X 1023 atoms of silver = 108 g

 1 atom of silver =  108 / (6.023 X 1023) g

 = 1.7931 X 10-22 g

Thus the mass of an atom of silver is 1.7931 X 10-22 g. 

The atomic mass of carbon is 12 u while that of oxygen is 16 u. The chemical formula of carbon dioxide is CO2, so the molecular mass of carbon dioxide is 12 + 2 X (16) = 44 u. The molar mass of carbon dioxide is 44g.  This means there are 6.023 X 1023 molecules of CO2 in 44 g of CO2. Thus 

 6.023 X 1023 molecules of CO2 = 44 g of CO2

 1 molecule of CO2 = 44 / ( 6.023 X 1023 ) g

 = 7.305 X 10-22

So the mass of a molecule of CO2 = 7.305 X 10-22

  • 62

 Atomic Mass of Silver is 107 g/mol

Molar mass of CO2  

12 + 16*2 = 12 + 32= 44 u 

  • -10

thnxx !

  • -3
What are you looking for?