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

  • question_answer
      Calculate the number of moles for the following. (a) 84 g nitrogen atom (b) 8.066 x 1023 number of N atoms [Atomic mass of N = 14]  

    Answer:

       (a) 14 g of N atom =1 mole of N atom 84gofN atom mol (b) 6.022 x 1023 N atoms =1 mole of N atom N atoms


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