K3-2 Calculate the mean particle radius hydrosol latex

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3.2 Calculate the average radius of the particles of polystyrene latex hydrosol, according to data obtained by a turbidity meter height illuminated part of the standard and unknown sol are h1 = 8⋅10-3 m and h2 = 18 • 10-3 m, respectively; the average radius of the particles of the standard sol r1 = 88⋅10-9 m. Concentrations of the standard and the unknown are sols.

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Tasks of metodichek:
"Laboratory workshop on colloid chemistry" Nekrasov AP Veretenchenko BA, Kharkiv NTU "KPI", 2004
"Characteristic features of disperse systems" Nekrasov, AP, Kharkiv, 1996
Manuals differ only in the number of tasks in each section. Tasks from 1 to 20 identical. But anyway, check the condition!
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Tasks performed in Microsoft Word, graphics - in Microsoft Exel or OriginPro; formula typed in MathType (if formulas are unreadable signs, then you must install the editor); files are archived WinRAR.

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