9th Class Science Atoms and Molecules

  • question_answer 30)
      Which of the following would weigh the highest? (a) 0.2 mole of sucrose                          (b) 2 moles of (c) 2 moles of                                                                     (d) 10 moles of  

    Answer:

      (c) 2 moles of  would weigh the highest. (a)      Mass of 1 mole of sucrose Mass of 0.2 mole of sucrose            Mass of 0.2 mole of sucrose = 342 x 0.2 = 68.4g (b)     Mass of 1 mole of            Mass of 2 moles of (c)      Mass of 1 mole of            Mass of 2 moles of (d)     Mass of 1 mole of            Mass of 10 moles of Therefore, mass of 2 moles of  is the highest, i.e., 200g.


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