Roughly 1.023x10^22 molecules of aspartame or 10,230,000,000,000,000,000,000
The atomic weight of magnesium is 24.31; therefore, the number of moles in 100 gm is 100/24.31 = 4.11, to the justified number of significant digits.
10.0 moles oxygen is 10.0 moles oxygen
9.214 x 10^18 molecules
0026 moles