12 Questions
What type of particles are generally desirable in gravimetric work?
Large particles that are easy to filter
What process involves a minimum number of atoms, ions, or molecules joining together to produce a stable solid?
Nucleation
What is the characteristic size of particles in a colloid?
Diameters less than 10^-4 cm
How can the particle size of crystalline solids be improved significantly?
Elevating the temperature and minimizing Q, maximizing S, or both
What process involves a substance being held on the surface of a solid?
Adsorption
How can coagulation of a colloidal suspension be achieved effectively?
Heating with stirring
What is the main principle behind gravimetric methods of analysis?
Measurement of mass
Which statement best describes precipitation methods in gravimetric analysis?
The precipitate is weighed after suitable heat treatment.
What is the purpose of volatilization methods in gravimetric analysis?
To volatilize the analyte at a suitable temperature
What are the characteristics of an ideal precipitating reagent?
Low solubility, easily filtrated, and unreactive with atmosphere
Why is it important for a precipitating reagent to be unreactive with constituents of the atmosphere?
To avoid sample contamination during analysis
What happens to the volatile product in volatilization methods in gravimetric analysis?
It is collected and weighed
Explore the principles and applications of gravimetric methods of chemical analysis, including titrimetric methods, properties of precipitates, drying and ignition of precipitates, and calculating results from gravimetric data. Learn about the different techniques and applications in this field.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
