Which among the following is the heaviest

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Which among the following is the heaviest

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One mole of oxygen

One molecule of sulphur trioxide

100 amu of uranium

44 g of Carbon dioxide

answer is D.

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Detailed Solution

1 mole of oxygen =1×16=16 g

1 molecule of SO₃ (32+48) = 80 × 6 × 10⁻²³g

100 amu of U [92 g = 1 mol]

=100 × 1.66 × 10⁻²⁴g

44 g of CO₂ = 1 mol = 44 g

→ Hence 44 g of CO₂ is the heaviest among these.

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