Question

How many atoms are there in 27g of aluminum?

Answer 1

heya

How many atoms are there in 27g of aluminum?

so, 
the mass in gram of the substance = 27g
the molar mass of the substance for aluminum = 26.98.


 the mass in gram / the molar mass of the substance.
 
27/26.89=1.0007 = 1.01 mol.

thank you

 

Answer 2

We know that the molar mass of Al is 27 g/mol.
27 g Al* (1 mol Al/ 27 g Al)= 1 mol Al.
The final answer is 1 mol Al



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