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