Question

( 4-1.080 times 49 operatorname{en} i 8(100-74 cdot 2) )
[
=25 cdot 81
]
given ( y cdot eta_{f} ) tha in opher compound is 59
( & quad 0 times 4 g operatorname{en} i & rightarrow 1-1 )
( 1^{text {st }} ) compound:
In loo gis? 5.8 Joungen present
( therefore ) rorss of sodium cosss bining with 1 g If oxygen would be ( frac{74 cdot 2}{25 cdot 8}=2 cdot 87 g )
Similariy 2 not cosnpongle
roass in Ma cuson sining wid 1 g of oxygen will be ( frac{59}{41}=1.44 mathrm{g} )
The ratio of rovisses of solium cosol bin ing with fixed rarss of ormgen
[
text { is } 2 cdot 87: 1 cdot 44=2 ; 1
]
o. Formula of IInd coonfound is ( N a_{2} O_{2} )

# Ex. 3: Sodium and oxygen combine to form two compounds of which one is Na2O. The percentage of sodium in the other compound is 59%. Find the formula of this compound.

Solution