User:Sarah Burkhard/Notebook/CHEM 481 Polymers/2017/02/22

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Objectives Take yellow beads out of acid, vacuum filter and immerse in neutral water Observe how fast changes in pH occur to establish a measurement increment to be used for future beads Data Mass of vacuum filtered beads +125mL containers: 10%: 32.544g 25%: 32.247g 40%: 33.271g Data Table 1: Data for acid exchange of beads Minute pH of 10% clay content pH of 25% clay content pH of 40% clay content 0 3.419 3.161 2.773 10 3.209 3.002 2.489 20 3.176 2.901 2.383 30 3.150 2.844 2.373 40 3.093 2.824 2.376 50 3.060 2.791 2.375 60 3.024 2.793 2.360 70 2.995 2.758 2.355 80 2.985 2.764 2.355 90 2.959 2.766 2.359 100 2.941 2.734 2.312