1.

A compound has haemoglobin-like structure. Ithas one Fe atom. It contains 4.6% of Fe. The approximate molecular mass is

Answer»

`100 g "mol"^(-1)`
`1200 g "mol"^(-1)`
`1400 g "mol"^(-1)`
`1600 g "mol"^(-1)`

Solution :1g of atom of Fe (56gFe) is present in 1 mol of COMPOUND . As 4.6 g of Fe are present in 100 g of the compound,
56 g of Fe will be present in `(100)/(4.6) XX 56 = 1217 g ` of compound .
` THEREFORE ` Approximate molecular mass = 1200


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