如何以50％ iodine stock solution 製備 5％ 500 mL 的iodine solution？
取100 mL iodine stock solution 添加蒸餾水400 mL
取50 mL iodine stock solution 添加蒸餾水至500 mL
取62.5 mL iodine stock solution 添加蒸餾水至500 mL
取50 mL iodine stock solution 添加蒸餾水400 mL
