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Questions and Answers
What type of particles are generally desirable in gravimetric work?
What type of particles are generally desirable in gravimetric work?
- Particles that do not settle from solution
- Particles with diameters less than 10^-4 cm
- Particles that settle spontaneously
- Large particles that are easy to filter (correct)
What process involves a minimum number of atoms, ions, or molecules joining together to produce a stable solid?
What process involves a minimum number of atoms, ions, or molecules joining together to produce a stable solid?
- Digestion
- Coagulation
- Nucleation (correct)
- Adsorption
What is the characteristic size of particles in a colloid?
What is the characteristic size of particles in a colloid?
- Diameters greater than 10^-4 cm
- Diameters exactly 10^-4 cm
- Diameters less than 10^-4 cm (correct)
- Diameters that vary
How can the particle size of crystalline solids be improved significantly?
How can the particle size of crystalline solids be improved significantly?
What process involves a substance being held on the surface of a solid?
What process involves a substance being held on the surface of a solid?
How can coagulation of a colloidal suspension be achieved effectively?
How can coagulation of a colloidal suspension be achieved effectively?
What is the main principle behind gravimetric methods of analysis?
What is the main principle behind gravimetric methods of analysis?
Which statement best describes precipitation methods in gravimetric analysis?
Which statement best describes precipitation methods in gravimetric analysis?
What is the purpose of volatilization methods in gravimetric analysis?
What is the purpose of volatilization methods in gravimetric analysis?
What are the characteristics of an ideal precipitating reagent?
What are the characteristics of an ideal precipitating reagent?
Why is it important for a precipitating reagent to be unreactive with constituents of the atmosphere?
Why is it important for a precipitating reagent to be unreactive with constituents of the atmosphere?
What happens to the volatile product in volatilization methods in gravimetric analysis?
What happens to the volatile product in volatilization methods in gravimetric analysis?
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