Which of the following are techniques to promote particle growth? Use a large vo

Question

Which of the following are techniques to promote particle growth? Use a large volume of solution so concentration of and precipitant are low. Rapidly add the precipitant to precipitate all from solution, then raise the temperature of the solution to promote crystal growth. Slowly adding precipitant with vigorous mixing as the precipitant is added to prevent a highly supersaturated condition in solution. Raise the temperature of the solution to increase solubility of precipitate and decrease. II, III, and IV I, II, and III I, III, and IV II and IV III and IV

Explanation / Answer

Option C is correct answer for for above question 1 keeping the volume of solution large so that concentration of analyte and precipitation are low 2 Add precipitant slowly with vigorous mixing to avoid a local,highly supersaturated condition 3 Raising the temperature to increase solubility and there by decrease supersaturation

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