2. Questions Bank
  3. 9th Class
  4. Science
  5. Atoms and Molecules

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

  • question_answer
      Verify by calculating that (a)5moles of  and 5 moles of  do not have the same mass. (b) 240 g of calcium and 240 g of magnesium   elements have a mole ratio of 3 : 5.

    Answer:

       (a) Mass of 5 mol Mass of 5 mol  Both values are not equal.             (b) 240 g calcium 240 g magnesium Ratio of 240 g Ca and 240 g Mg =6 : 10 = 3 : 5      Hence, values are correct.   


You need to login to perform this action.
You will be redirected in 3 sec spinner