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

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[[Image:Acid_exchange_of_beads.jpg]]




Latest revision as of 02:14, 27 September 2017

Project name Main project page
Previous entry      Next entry

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




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