Question

What is the mass in grams of 2.48x10^22 atoms of oxygen?

Answer 1

1 mol = 6.02 x 10²³ atoms

*6.02 x 10²³ is Avogadro's number and you will have to use it to solve this.

# grams oxygen = 2.48 x 10²² atoms x 1 mol x 16.00 g O ÷ 6.02 x 10²³ atoms ÷ 1 mol O = 0.659 grams O