How many moles in 1 teaspoon of sand , chalk , sugar

In order to calculate for the number of moles of these substances, we have to know what are chemical formulas of these and their molar masses. They are as follows:

sand = SiO2 (60.08 g/mol)
chalk = CaCO3 (100.0869 g/mol)
sugar = C12H22O11 (342.2965 g/mol)

The commonly used conversion would be that 1 teaspoon is equal to approximately 5 grams. We calculate as follows:

sand = 5 / (60.08 g/mol) = 0.08 mol
chalk =5 / (100.0869 g/mol) = 0.05 mol
sugar = 5 / (342.2965 g/mol) = 0.01 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.

What’s the question