You have a freshly prepared 0.1 m solution of glucose in water. Each liter of this solution contains how many glucose molecules?

Molarity of a given solution is the number of moles of a solute dissolved in 1 liter of the solvent

Concentration of glucose solution = 0.1 M

This implies that there are 0.1 moles of glucose in 1 liter of water.

Now,

1 mole of glucose contains 6.023 * 10^23 molecules of glucose

Therefore, 0.1 mole of glucose would correspond to:

0.1 * 6.023 * 10^23/1 = 6.023 * 10^22 glucose molecules.