11.625 moles of Na₂O are produced.
A mole is defined as the amount of a substance that contains exactly 6.02214076 × 10²³ ‘elementary entities’ of the given substance.
It can be represented by the following formula:
n = N/NA
To calculate moles of Na₂ O produced are -:
40 gm of sodium
3.00 gm of oxygen
4 Na+ O₂----->2Na₂O
First calculate limiting reagent,
Stochiometric ratio,
a/b=4/1
=4
Molar ratio,
M/n=4/22/3/22=4/22×32/3
=1.93
As a/b>m/n
So, sodium is limiting reagent
4 Na+ O₂----->2Na₂O
As 32 g of O₂ produced =124 g of Na₂O
SO,
3 gm of O₂ produced =124×3/32
=11.625 gm
11.625 gm of Na₂O can be produced .
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