Question

There are 5.7 moles of helium in a container. How many atoms of He does the container hold?

Answer 1

Answer:

3.43 x 10²⁴atoms

Explanation:

To solve this problem, the mole concept will play a very vital role.

 We have been given that:

        number of moles  = 5.7moles of He;

 So;

  We know that:

      1 mole of any substance contains 6.02 x 10²³ atoms

  5.7 moles of He will contain 5.7 x 6.02 x 10²³ atoms   = 3.43 x 10²⁴atoms