Final answer:
The strength of a solution is determined by its concentration, which can be calculated by dividing the amount of solute by the volume of the solution. In this case, the concentration of iodine in the solution is 0.25.
Step-by-step explanation:
The strength of a solution is typically determined by its concentration. In this case, you have 10 mL of iodine in 40 mL of solution. To calculate the concentration, you divide the amount of solute (in this case, iodine) by the volume of the solution. So, the concentration of iodine in the solution would be:
Concentration = Amount of Iodine / Volume of Solution
= 10 mL / 40 mL
= 0.25
Therefore, the strength of the solution is 0.25.