User:Sarah Burkhard/Notebook/CHEM 481 Polymers/2017/03/08

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Objectives get weight of bead batches. start with biggest, as we seem to have smallest amount for it put equal amounts of weight of the 25 % beads in acid ( 6 different batches, pH 3) start filtering 10 % Data batches: Acid exchange of 25% beads Create 30 mL of HCl at pH=3 3 mL of 0.1M HCl + 27 mL water pH measured = 3.308 Vacuum filtrate the beads that were separated by sizes Weigh about 0.118g of each batch of beads and put them in a separated glass vial Add 5 mL of HCl at pH=3.308 to each vial Table showing detailed measurement Here Analyze Carmine dye Stock Solution: Mass of dye: 0.05060g Volume of water: 100 mL Solution used for experiment: 10 mL of stock solution 90 mL of water Run UV-Vis on the solution used for experiment Carmine trendline Notes the difference between the theoretical weight (filter paper with beads - filter paper) led to too much error ( water evaporation ). this is why we started weighing the beads and stopped calculating the value.