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  5. Atoms and Molecules

9th Class Science Atoms and Molecules

  • question_answer 15)
    A 0.24 g sample of compound of oxygen and boron was found by analysis to contain 0.096 g of boron and 0.144 g of oxygen. Calculate the percentage composition of the compound by weight.

    Answer:

    We know that, % of any element in a compound   % of boron     % of oxygen  


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