Chem 162 final exam 3 - Study guides, Class notes & Summaries

Chemistry definition correct answers Study of structure, properties, transformations of matter Matter correct answers Anything that has mass + takes up space Phases: solid, liquid, gas Condensed phases = solids + liquids Intermolecular Forces (IMF) correct answers = Interactions between molecules/atoms/ions Solution correct answers = Homogenous mixtures of 2+ pure substances In a solution, the solute is dispersed uniformly throughout the solvent - Solute = compound(s) in lesser amount - ...

Chem 162 Final Exam (3)

CHEM 162 Final Exam Review Problems 1. A chemist is given a white solid that is suspected of being pure cocaine. When 1.22 g of the solid is dissolved in 15.60 g of benzene, the freezing point is lowered by 1.32°C. Calculate the molar mass of the solid. The molal freezing-point constant (Kf) for benzene is 5.12°C/m. 303 g/mol 2. What is the expected osmotic pressure, in torr, of a 0.0100 M solution of NaCl in water at 25°C? A) 0.245 torr B) 15.6 torr C) 372 torr D) 186 torr E) non...

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