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
      (a) Calculate the number of moles of magnesium present in a magnesium ribbon weighing 12g. Molar atomic mass of magnesium is 24g (b) Calculate the formula unit mass of .

    Answer:

      Ans. (a) Number of moles of (b) Atomic mass of Ca = 40 and Cl = 35.5               


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