Question

A closed container has 3.06 ⋅ 1023 atoms of a gas. Each atom of the gas weighs 1.67 ⋅ 10–24 grams. Which of the following shows and explains the approximate total mass, in grams, of all the atoms of the gas in the container?

Answer 1

The approximate total mass= number of atoms * weight of an atom.

The approximate total mass=3.06 10²³ atoms. (1.67 10⁻²⁴ grams/1 atom)=

=0.51102 g ≈ 0.51 g

Answer: the spproximate total mass is 0.51 grams.