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0.492g sample of haemoglobin has 0.34% b...

`0.492g` sample of haemoglobin has `0.34%` by mass of Fe. If each molecule of haemoglobin has `4` Fe atoms find its molecular mass ? .

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Let `M` = Molecular mass of haemoglobin `rArr (0.34)/(100) xx M = 4 xx 56`
`M = 65882.3` amu .
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