What is the number of oxygen molecules in 126 amu of HNO3..??
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ANSWER
ATOMICITY OF OXYGEN IN HNO3 IS 3
IMPLIES 1 MOLE CONTAIN 3 ATOM OF OXYGEN
MOLE = 126×1.66×10^-24 g /63=2
apply unitry method
1mol.......3atom
209.2×10^-24 contain 3 × 209.2×10^-24 atom
no of oxygen molecules = 627 ×10^-24/2 molecules
as 1 molecule formed by 2 atoms of oxygen
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Answer:48 ami or g/mol
Explanation:As it is written (HNO3)
O3=16×3
=48 amu.
This is the simplest answer ever.
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