Question

How many grams are in 2.30 x 10^23 atoms in Na?

Answer 1

There are 8.786 g

Further explanation

The mole is the number of particles contained in a substance

1 mol = 6.02.10²³

2.30 x 10²³ atoms in Na :

`\tt mol=(2.3* 10^(23))/(6.02* 10^(23))=0.382`

mass :

`\tt mass=mol* Ar~Na\\\\mass=0.382* 23=8.786~g`