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Chemistry
Level
pending
Two oxides of metal M have 27.6 % and 30% oxygen by weight.If the formula of the first oxide is M3O4 what is the formula of second oxide?
M3O2
MO2
M2O3
M2O
MO
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1 solution
Oxide (A) : Oxygen 27.6%;4 ‘O’atoms Metal 72.4%;3 ‘M’ atoms Oxide (B): Oxygen 30%;Metal 70% Number of ‘O’ atoms = 30 4 4.35 27.6 Number of ‘M’ atoms = 70 3 2.9 72.4 Ratio of M and O atoms is oxide B= 2.9:4.35=2:3