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

  • question_answer
      Calculate the mass per cent of each element present in the molecule of calcium carbonate.

    Answer:

                      Molecular formula of calcium carbonate Molecular mass of Gram molecular mass =100 g/mol 1 mol of (a)    Mass % of Ca in (b)Mass % of carbon in (c)Mass % of oxygen in


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