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categoryالكيمياء schoolبكالوريوس event_available2026-07-15

السؤال

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The freezing point depression of a solution of 2.000 g of 1,3-dinitrobenzene in 100.0 g of benzene was determined by the equilibrium method and was found to be 0.6095°C. Calculate the molecular weight of 1,3-dinitrobenzene. kf=5.12 Select one: a. 105 b. 370 c.220 d. 168

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