Weigh 2 g of potassium
iodide into a 100 mL beaker. Weigh 1.3 g of iodine and
add it into the same beaker. Add a few mL of distilled
water and swirl for a few minutes until iodine is
dissolved. Transfer iodine solution to a 1 L volumetric
flask, making sure to rinse all traces of solution into the
volumetric flask using distilled water. Make the solution
up to the 1 L mark with distilled water.