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Select the true statements regarding flocculation. a. Repulsive forces between molecules must be reduced to allow attractive forces to flocculate particles b. Low ionic strength favors particle-particle attachments (flocculation) C. Electrokinetic properties of particles depend only on the particle characteristics which cannot be manipulated to decrease repulsive forces between particles d. Van der Waals are attractive forces that allow for flocculation

Select the true statements regarding flocculation. a. Repulsive forces between molecules must be reduced to allow attractive forces to flocculate particles b. Low ionic strength favors particle-particle attachments (flocculation) C. Electrokinetic properties of particles depend only on the particle characteristics which cannot be manipulated to decrease repulsive forces between particles d. Van der Waals are attractive forces that allow for flocculation

Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter17: Electrochemistry
Section: Chapter Questions
Problem 97QAP: For the cell: Cr|Cr3+Co2+|Co E° is 0.46 V. The same cell was prepared in the laboratory at standard...
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Select the true statements regarding flocculation. a. Repulsive forces between molecules must be reduced to allow attractive forces to flocculate particles b. Low ionic strength favors particle-particle attachments (flocculation) c. Electrokinetic properties of particles depend only on the particle characteristics which cannot be manipulated to decrease repulsive forces between particles d. Van der Waals are attractive forces that allow for flocculation
Transcribed Image Text:Select the true statements regarding flocculation. a. Repulsive forces between molecules must be reduced to allow attractive forces to flocculate particles b. Low ionic strength favors particle-particle attachments (flocculation) c. Electrokinetic properties of particles depend only on the particle characteristics which cannot be manipulated to decrease repulsive forces between particles d. Van der Waals are attractive forces that allow for flocculation
Which of the following are true regarding the electric double layer? a. The stern layer describes the firmly attached layer of counter ions that are attracted to the typically positively-charged cell debris at neutral pH. b. The thickness of the double layer is independent of the valence of counter ions (Al³+ or Nat). c. Decreasing the ion concentration would reduce the thickness of the double layer. d. Increasing the bulk concentration of ions (i.e. increasing ionic strength) would decrease the Debye radius. e. Describes the charged atmosphere surrounding a charged particle which impacts flocculation of charged particles.
Transcribed Image Text:Which of the following are true regarding the electric double layer? a. The stern layer describes the firmly attached layer of counter ions that are attracted to the typically positively-charged cell debris at neutral pH. b. The thickness of the double layer is independent of the valence of counter ions (Al³+ or Nat). c. Decreasing the ion concentration would reduce the thickness of the double layer. d. Increasing the bulk concentration of ions (i.e. increasing ionic strength) would decrease the Debye radius. e. Describes the charged atmosphere surrounding a charged particle which impacts flocculation of charged particles.
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