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Von Weimarn Ratio and Particle Size

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Questions and Answers

What is the principle of gravimetric analysis that involves the reaction of a reagent with an analyte to form a solid product?

Reagent + Analyte → Solid Product

What are the desired properties of a solid product in precipitation analysis?

Very insoluble, easily filterable, very pure, and known and constant composition

How can the solubility of a precipitate be decreased?

By decreasing the temperature of the solution, using a different solvent, or taking advantage of the common ion effect

What is the significance of 'like dissolves like' in precipitation analysis?

It means that a less polar or organic solvent can be used to decrease the solubility of a precipitate Signup and view all the answers

Why is it important to consider the pH of a solution in precipitation analysis?

Because pH affects the solubility of a precipitate Signup and view all the answers

What is the role of crystal growth in precipitation analysis?

It allows for the formation of large crystals that are easily filterable Signup and view all the answers

What is filterability, and why is it important in precipitation analysis?

Filterability is the ability of a solid product to be easily filtered, and it is important for collecting and measuring the solid product Signup and view all the answers

What is relative supersaturation, and how does it relate to precipitation analysis?

Relative supersaturation is a measure of the degree of supersaturation of a solution, and it affects the formation of a solid product Signup and view all the answers