5 Questions
What is the relationship between particle size of precipitates and relative supersaturation?
Particle size is inversely proportional to relative supersaturation
How can large crystals be obtained through precipitation?
Minimize the degree of supersaturation
What is the formula for relative supersaturation?
(Q − S)/S (Q = Concentration of mixed reagents before precipitation, S = solubility of the precipitate at equilibrium)
What should be done to obtain large crystals when precipitating from a dilute solution?
Keep Q low and add precipitating reagent
How does high relative supersaturation affect crystal formation?
Results in many small crystals with high surface area
Test your knowledge of analytical chemistry with this quiz covering quantitative and chemical methods of analysis. Explore topics such as gravimetric analysis, titrimetric analysis, spectroscopic techniques, and the tedious but accurate microanalytical technique used by T.W. Richards to determine atomic weights.
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