. 
(three significant figures.)
, 
, and 
on a modern periodic table:
.
.
.
atoms would be approximately 
grams on average.)
molecules without using any unit. Avogadro's Number 
helps convert the unit of that count to moles. 
of these 
molecules. 
of such molecules. 
molecules. The value of the formula mass could be calculated using the relative atomic mass of each element:
.
of 
.Find the mass of 3.27 x 10^23 molecules of H2SO4. Use 3 significant digits
and put the units....
Answers: 2
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