Question

How many moles is 2.80 x 1024 atoms of silicon?

Answer 1

Answer:

The moles   of silicon  is 4.651  moles

Explanation:

The  moles  of  silicon   is calculated using  Avogadro's  constant

that  is  according to Avogadro's  law

                                                  1 mole  = 6.02  x 10^23 atoms

                                                  ?  moles  = 2.80 x 10 ^24  atoms  of silicon

by  cross multiplication

  =  [ ( 1 mole  x 2.80 x 10^24  atoms)  / ( 6.02 x 10 ^23  atoms)]

     =   4.651  moles

Answer 2

Answer:

solve

2.80×1024

2867.2