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Atoms of elements A, B and C combine to ...

Atoms of elements A, B and C combine to form a compound in the atomic ratio of `1 : 6 : 2`. Atomic masses of A, B and C are 64, 4 and 16 respectively. What will be the maximum mass of a compound formed from 1.28 g of A, `3xx10^(23)` atoms of B and 0.04 moles of C ?

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