9th Class Science Atoms and Molecules Question Bank 9th CBSE Science Atoms and Molecules

  • question_answer
      Calculate the mass of 1 molecule of oxygen gas. [Atomic mass of 0 = 16u,]

    Answer:

      1 mole of oxygen molecules = 32 g of oxygen  = 6.022 x 1023 molecules  6.022 x 1023 molecules of  weigh 32 g 1 molecule of  will weigh


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