Question

( 3 cdot 2 mathrm{gm} mathrm{O}_{2} )
in 100 gm compound
Molar Atomic mass of ( 0=16 mathrm{gm} )
Minimum amount of 0 that can be present
in compound ( =16 mathrm{gm} )
(1 mole)
is ( 3.2 mathrm{gm} rightarrow 100 mathrm{pm} ) compound
16 gm ( rightarrow x )
( x=frac{16 times 100}{320-2} )
Mivimum molecular= 500 gm weight of the compound

# 4. A compound contains 3.2% of oxygen by mass. The minimum molecular weight of the compound is (2) 440 (1) 300 (3) 350 (4) 500

Solution