The number of moles of NaClO3 that would be needed to produce 7 moles of O2 would be 5 moles of NaClO3 approximately.
Stoichiometric calculations
From the equation of the reaction:
2NaClO3 --> 2NaCl +3O2
The mole ratio of NaClO3 to O2 is 2:3.
Thus, every 3 moles of O2 require 2 moles of NaClO3 .
7 moles of O2 will, therefore require:
= 2 x7/3
= 4.6666 moles of NaClO3
To the nearest whole number = 5 moles of NaClO3
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