MEDIUMMCQ SINGLEJEE Mains ChemistryPhysical ChemistryMole _ Equivalent ConceptAtomic and Molecular Masses

Which among the following is the heaviest?

A.One mole of oxygen

B.One molecule of sulphur trioxide

C.100 amu of uranium

D.44g of carbon dioxide✓ Correct

Explanation

a) One mole 2 O weighs 32g b) 1 mole i.e. 23 6.023 10 x molecule of 3 SO weighs 80g 1 molecule of 3 SO will weigh 23 1 80 6.023 10 g x x i.e. 22 1.33 10 g x c) 1 . . amu .= 24 1.66 10 g x 100 . . a mu of Uranium= 24 22 100 1.66 10 1.66 10 x x x g d) 44g of 2 CO (Given) The correct option is (d)

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