Calculate no. of oxygen atom in following
(45 g)
Text Solution
Verified by ExpertsGO FOR SOLUTION
To find the number of oxygen atoms, we use the mole concept and Avogadro's number 
atoms 
.
Cr2O7 (2 moles)
Molar mass of 
:
Number of oxygen atoms in 1 mole of 
:
Number of oxygen atoms in 2 moles:
H3PO4 ( 
molecules)
Number of oxygen atoms in 1 molecule of 
:
Number of oxygen atoms in 
molecules:
H2S2O8 ( 
molecules)
Number of oxygen atoms in 1 molecule of 
:
8 atoms/molecule
Number of oxygen atoms in 
molecules:
of 
Molar mass of 
:
Number of moles in 
of 
:
Number of oxygen atoms in 1 mole of 
:
Number of oxygen atoms in 1.406 moles:
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