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A pure sample of MgSO₄ contain 100 moles of total atoms. The mass of sample is

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2.4 gm

1.2 Kg

1.2gm

2.4 Kg

answer is B.

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Detailed Solution

1 mole MgSO₄ = total of 5 mole atoms

? = total of 100 mole atoms

= 20 moles of MgSO₄

= 20 x 120 = 2400 gm = 2.4 Kg

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