Question

Calculate the no. of atoms in 54 gm of aluminium atom

Answer 1

Answer:

no. of atoms = 2 Na =2*6.022*10^23

Explanation:

we know that no. of moles = given mass/ molar mass

                                             =54/27

                                              =2 moles

we also know that no. of moles =given no. of particles/Na

                                             so,  2=given no of particles/Na

                                                     therefore, given no of atoms=2*Na

                                                                                              =12.044*10^23atoms

hope it helps