What is the mass, in grams, of a sample of 1.20 × 1022 atoms of mercury (hg)? show your work or explain the steps that you used to determine your answer.

3.81 grams

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 Liters at STP and contains avogadro's number of particles.

To calculate the moles, we use the equation:

  (1L=1000ml)

Now 1 mole of atom weighs = 200.59 g

0.019 moles of atom weighs=

Thus mass of sample of mercury is 3.81 grams