Answer:
There are approximately 1.56 x 10^-19 moles of Mercury in the sample containing 9.38 x 10^4 atoms of Hg.
Explanation:
To determine the number of moles of Mercury in a sample containing 9.38 x 10^4 atoms of Hg, we must first understand the concept of Avogadro's number. Avogadro's number is the number of atoms, ions, or molecules in one mole of a substance, which is approximately 6.022 x 10^23.
Given that there are 9.38 x 10^4 atoms of Hg in the sample, we can calculate the number of moles of Mercury by dividing the number of atoms by Avogadro's number:
Number of moles = Number of atoms / Avogadro's number
Number of moles = 9.38 x 10^4 / 6.022 x 10^23
Number of moles ≈ 1.56 x 10^-19 moles
Therefore, there are approximately 1.56 x 10^-19 moles of Mercury in the sample containing 9.38 x 10^4 atoms of Hg. This calculation highlights the importance of Avogadro's number in converting between the microscopic scale of atoms and the macroscopic scale of moles in chemical calculations.
