Show that 27u of Al and 27g of Al do not contain same number of atoms.

 

Dear Kunmunsahoo.2012@rediffmail.com

Thanks for asking us a question in Ask the Expert section of TopperLearning.com.

We have not understood the query that you have posted. We would request you to clarify / provide additional details so that we may answer this to the best of the ability.

 

However, please refer to the following answer:

 

27u of Al and 27 g of Al contains same number of atoms.

According to the defination of mole,

1 mole of a substance is equal to its atomic mass or molecular mass expressed in grams.

Atomic mass of aluminium is 27 u.

Therefore, 1 mole of Aluminium = 27u which is equal to gram atomic mass of aluminium that is, 27 grams.

 

Regards

Topperlearning Team.