how many moles are in 2.17*10^-3 grams of C6H12O6

Answer 1

Here is the step-by-step way to solve this:

(1) Look up the atomic weights of C, H, and O in grams per mole.

(2) Compute the molecular weight of the substance in grams per mole from the atomic weights:

molecular weight = 6(C) + 12(H) + 6(O)

(3) Divide the mass in grams of the substance by its molecular weight in grams per mole. That gives the number of moles.