Answer: 2.51 x 10*25 atoms
Explanation:
Recall that based on Avogadro's number,
1 mole of any substance has 6.02 x 10*23 atoms
So if 1 mole of sulphur = 6.02 x 10*23 atoms
41.8 moles of sulfur = Z
To get the value of Z, we cross multiply:
1 mole x Z atoms= 41.8 moles x 6.02 x 10*23 atoms
Z = 251.636 x 10*23
Place the result in standard form
Hence, Z = 2.51 x 10*25 atoms
Thus, the number of sulfur atoms present in 41.8 miles of sulfur is 2.51 x 10*25 atoms