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  4. Calculate the number of oxygen atoms required to combine with 7g of N2 to form N2O3 when 80 % of N2 is converted to N2O3 .

Q. Calculate the number of oxygen atoms required to combine with of to form when of is converted to .

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Solution:

for formation of

moles of combines with of
Given, only reacts
Mole of
Hence
moles
Number of atoms

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