You are given a stock polymer of 4.21 grams in 250 ml solution. About 50 ml of the solution is taken. If it is diluted by the factor of 2, what will be it's new concentration? This new solution is diluted again by the factor of 2. What will be it's new concentration? Now 0.2480 grams of KIO4 is added to the 25 ml of stock polymer solutions and 25 ml of deionized water is added. What will be it's concentration?