25:23Colligative Properties - Boiling Point Elevation, Freezing Point Depression & Osmotic PressureThe Organic Chemistry Tutor620views
Multiple ChoiceWhich of the following compounds will have the highest boiling point?938views1rank1comments
Multiple ChoiceWhich of the following compound will have the highest vapor pressure?765views2rank3comments
Open QuestionAssuming equal concentrations and complete dissociation, arrange these aqueous solutions by their freezing points.393views
Open QuestionWhich of the following ions will contribute most to elevating the boiling point of H2O?262views
Open QuestionWhich beaker shows a greater decrease in liquid level after being left side by side on a lab bench for 1 week, a beaker with 100.0 mL of pure water or a beaker with 100.0 mL of seawater, and why?
Open QuestionA solution contains 4.08 g of chloroform (CHCl3) and 9.29 g of acetone (CH3COCH3). The vapor pressures at 35 °C of pure chloroform and pure acetone are 295 torr and 332 torr, respectively. Assuming ideal behavior, calculate the vapor pressures of each of the components and the total vapor pressure above the solution. The experimentally measured total vapor pressure of the solution at 35 °C is 312 torr. Is the solution ideal? If not, what can you say about the relative strength of chloroform–acetone interactions compared to the acetone–acetone and chloroform–chloroform interactions?
Open QuestionA solution of methanol and water has a mole fraction of water of 0.312 and a total vapor pressure of 211 torr at 39.9 °C. The vapor pressures of pure methanol and pure water at this temperature are 256 torr and 55.3 torr, respectively. Is the solution ideal? If not, what can be inferred about the relative strengths of the solute–solvent interactions compared to the solute–solute and solvent–solvent interactions?
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