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1 A solution is prepared by dissolved 65.0 grams of a molecular unknown in 200.0 grams of water. The observed freezing point is at -4.2 °C. a) Calculate the value of the unknown molar mass. b Calculate the value of osmotic pressure for this solution at 25.0 °C.

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Mp 200Maki Velimi143-93 Jocn

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