MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryMole _ Equivalent ConceptAtomic and Molecular Masses
Which of the following represents 180 g of water correctly? (I) 5 moles of water. (II) 10 moles of water. (III) 6.023 × 1023 molecules of water. (IV) 6.023 × 1024 molecules of water. Choose the correct option.
A.I and II
B.I and IV
C.II and IV✓ Correct
D.II and III
Explanation
18g of H₂O = 1 mol 180g of H₂O = 10 mol 6.023 × 1023 molecules of H₂O = 18g of H₂O. 180g of H₂O 23 6.023 10 180 18 x x = 6.023 × 1024 molecules of H₂O.
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