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  4. Which of the following represents 32g of the substance? (1) 1 g atom of sulphur (2) 22.4 L of O2 gas at STP (3) One mole of oxygen atoms (4) One mole of sulphur molecules

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Q. Which of the following represents 32g of the substance? (1) 1 g atom of sulphur (2) 22.4 L of $ {{O}_{2}} $ gas at STP (3) One mole of oxygen atoms (4) One mole of sulphur molecules

BHUBHU 2011

Solution:

One gram atom of sulphur = 32 g 22.4 L $ {{O}_{2}} $ at STP = 1 mol = 32 g One mole oxygen atoms = 16 g One mole of $ {{S}_{8}} $ molecules
$=8\times 32=256g. $