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Question

Calculate the molecular masses of H2.


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Solution

  1. Molar mass is the sum of the masses of all the individual atoms present in a molecule or compound
  2. The atomic mass of Nitrogen N is 14u.
  3. The atomic mass of hydrogen H is 1u.
  4. The atomic mass of Oxygen is 16u.
  5. The atomic mass of carbon is 12u.
  6. The atomic mass of chlorine is 35.5u.
  7. MolecularmassofH2=2xAtomicmassofhydrogen
  8. =2x1
  9. =2g/mole

The molar mass of H2 is 2g/mole.


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