User:Anh Do/Notebook/CHEM 481 Polymer/2017/02/17

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Task List Find swelling capacity of beads Soak the 10% beads in pH=1 solution (0.1M HCl) Vacuum filtrate the 25% clay content beads Swelling capacity of beads Vacuum filtrate the beads. Weigh them before and after Vacuum filtration did not dry the beads thoroughly enough. Beads were placed in acetone to further remove water 10% clay content Mass of wet beads: Mass of dry beads: 176.58-173.66 = 2.92 g Swelling capacity = (176.58-173.66) Place dried beads in 0.1M HCl Measure pH Let them sit till Wednesday to find change in pH 10%: pH = 0.933 25%: pH = 0.901 40%: pH = 1.040