The first hint tells us the answer. When we dissolve 1 mol of NaCl, it will ionize into its ions.
NaCl ----> Na+ + Cl-
Glucose will not ionize and will stay as a whole compound.
We have the same volume of solution and the same concentration. But, since the NaCl ionizes into two ions. The concentration of the solutes in that solution is greater (it is the double).
Answer: The NaCl solution has the more solutes.
