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COMEDK2017ChemistrySome Basic Concepts of Chemistry

80 ~g of oxygen contains as many atoms as in

Options

  1. A80 ~g of hydrogen
  2. B1 g of hydrogen
  3. C10 ~g of hydrogen
  4. D5 ~g of hydrogen

Correct answer

D. 5 ~g of hydrogen

Step-by-step solution

Number of atoms = mass molecular mass N_ A Number of atoms is oxygen = product of atoms in hydrogen 80 16 N_ A = W 1 N_ A W= 80 16 =5 g of hydrogen

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