5 Questions
Why may coagulation be difficult and slow when precipitates form as colloidal suspensions?
Coagulation may be difficult and slow, particularly when the isolation of a small quantity of a solid phase is attempted.
What is the key requirement for separations by precipitation?
Large solubility differences between the analyte and potential interferents
What are the three categories in which separations based on pH control can be grouped in practice?
(1) Those made in relatively concentrated solutions of strong acids, (2) Those made in buffered solutions at intermediate pH values, and (3) Those made in concentrated solutions of sodium or potassium hydroxide.
What can be varied or easily controlled by the use of buffers in separations based on pH control?
The concentration of hydrogen or hydroxide ions in a solution
What is the theoretical feasibility of separations by precipitation determined by?
Solubility calculations
Test your knowledge of separation techniques in analytical chemistry with a focus on separation by precipitation. This quiz covers the theoretical feasibility, solubility calculations, and challenges associated with separations by precipitation.
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