21. How many moles are in 1.25 g of CH4? Information that MIGHT be useful: At room temperature, the density of CH4 is 0.654 g/L. a. 0.0779 mol
b. 0.818 moi
c. 1.91 moi
d. 12.8 mol
e. 20.1 mol

Because electrons have negligible mass, to account for the mass of the isotope, there must be 16 neutrons, 16 neutrally charged, massive, fundamental particles present in the sulfur nucleus. and thus finally, if we have the 32s2− ion, there are 18 electrons, 16 protons, and 16 neutrons.

Answer is to avoid experimental error

The answer is 65.3312