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Questions and Answers
What technique can be used to obtain larger particles of a precipitate by controlling the pH?
What technique can be used to obtain larger particles of a precipitate by controlling the pH?
- Occlusion
- Mixed-Crystal Formation (correct)
- Peptization
- Surface Adsorption
Which method is effective in coagulating a colloidal suspension by increasing electrolyte concentration?
Which method is effective in coagulating a colloidal suspension by increasing electrolyte concentration?
- Occlusion (correct)
- Peptization
- Mixed-Crystal Formation
- Surface Adsorption
What process involves a short period of heating and stirring to coagulate a colloidal suspension?
What process involves a short period of heating and stirring to coagulate a colloidal suspension?
- Mixed-Crystal Formation
- Occlusion
- Surface Adsorption (correct)
- Peptization
Which technique involves carrying normally soluble compounds out of a solution with a precipitate?
Which technique involves carrying normally soluble compounds out of a solution with a precipitate?
How can the particle size of crystalline solids be significantly improved?
How can the particle size of crystalline solids be significantly improved?
What is the benefit of having precipitates made up of large particles in gravimetric work?
What is the benefit of having precipitates made up of large particles in gravimetric work?
What is a characteristic of colloidal particles?
What is a characteristic of colloidal particles?
What is the size range of particles that make up a colloid?
What is the size range of particles that make up a colloid?
What does a small (Q - S)/S value indicate about a precipitate?
What does a small (Q - S)/S value indicate about a precipitate?
What is nucleation in the context of precipitate formation?
What is nucleation in the context of precipitate formation?
What influences the rate of nucleation during precipitate formation?
What influences the rate of nucleation during precipitate formation?
What is the purpose of digestion in reducing coprecipitation?
What is the purpose of digestion in reducing coprecipitation?
What is homogenous precipitation?
What is homogenous precipitation?
What happens after filtration of a gravimetric precipitate?
What happens after filtration of a gravimetric precipitate?
Why are homogeneously formed precipitates better suited for analysis?
Why are homogeneously formed precipitates better suited for analysis?
What occurs during the ignition step of precipitates?
What occurs during the ignition step of precipitates?
How are results of a gravimetric analysis computed?
How are results of a gravimetric analysis computed?
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