Final answer:
A one molar solution does indeed contain Avogadro's number, which is 6.02 × 10^23 molecules of solute. This is a foundational concept in chemistry used to calculate the concentration of solutions.
Step-by-step explanation:
The statement that a one molar solution contains 6.02 × 10^23 molecules of solute is true. By definition, one mole of any substance contains Avogadro's number of particles, which is exactly 6.02 × 10^23. In terms of molarity, a one molar (1 M) solution means there is one mole of solute per liter of solution. Therefore, a 1 M solution indeed contains 6.02 × 10^23 molecules.
To delve a little deeper, if we know the molecular mass of a substance, we can calculate its molarity in a solution by dividing the mass of the solute by the molecular mass to get moles, and then dividing by the volume of the solution in liters. This is demonstrated in the exercise where 66.2 g of C6H12O6 (glucose) is dissolved to make 235 mL of solution.