10 raise to 22 atoms of an element 'x' are found to have a mass of 930 mg . Calculate the molar mass of an element 'x'

1 mole  = 6.022 $\times$ 10²³ atoms

Number of moles = Given mass / Molar mass

Molecular mass = ​$\frac{Given mass}{Avagadro number}\times Given atoms$

                               =    0.930 g$\times$6.022 $\times$10²³/10²²

                              =   5.6$\times$10 g