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

  • question_answer
      Calculate the number of molecules in 11gof. [Atomic mass of C and O are 12and 16 respectively]

    Answer:

      Molar mass of  =12 + 2 x 16                                               = 44g                     44 g of contains number of molecules = 6.022 x 1023 11 g of will contain number of molecules = 1.5055 x1023 molecules  


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