Question

16. Calculate the number of atoms in 69 U of Na and 69 gm of Na​

Answer 1

Answer:

w=69,

m=23,

mou=weight/mass=69/23=3

and we know in 1 mole=6.022×10²³

so in three mole =3×6.022×10²³

=18.069×10²³

Answer 2

Answer:

the above ans is correct