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clow (twc432) – Homework #2 – holcombe – (51160)1Thisprint-outshouldhave22questions.Multiple-choice questions may continue onthe next column or page – find all choicesbefore answering.00110.0pointsConsider two closed containers.ContainerX is a 2 L container that contains 0.5 L ofacetone. Container Y is a 2 L container thatcontains 1.8 L of acetone. Both containers andcontents are at 30◦C. Which of the followingis true?1.The vapor pressures in both containersare equal.correct2.The vapor pressure in container Y isgreater.1.260 torr2.274 torrcorrect3.33.0 torr4.241 torr3.You would need information about theshape of the containers to be able to answerthis question.4.The vapor pressure in container X isgreater.Explanation:00210.0pointsWhich of the following is a restatement ofHenry’s Law?1.Adding a non-volatile solute to a liquidwill lower its vapor pressure.2.As the partial pressure of a gas above aliquid increases, the gas’s solubility in thatliquid also increases.correct3.Heating a solution will decrease the solu-bility of gases dissolved in it.4.A mixture of two liquids will have a vaporpressure that isn’t equal to either of the pureliquid’s vapor pressures.Explanation:Henry’s law, formulated by William Henryis 1803 states: ”At a constant temperature,the amount of a given gas dissolved in a giventype and volume of liquid is directly propor-tional to the partial pressure of that gas inequilibrium with that liquid.”00310.0pointsThe vapor pressures of pure carbon disulfideand carbon tetrachloride are 360 and 99.8torr, respectively, at 296 K. What is the vaporpressure of a solution containing 50.0 g of eachcompound?Explanation:00410.0pointsFor gases that do not react chemically withwater, the solubility of the gas in water gen-erally (decreases, increases) with an increasein the pressure of the gas and (decreases, in-creases) with increasing temperature.4.decreases; increasesExplanation:An increase in pressure means that youhave increased the concentration of gas abovethe solvent surface, thereby increasing theconcentration of the gas in the solvent.In-creasing the temperature will decrease thesolubility of the gas.00510.0pointsThe vapor pressure of pure CH2Cl2(molecu-lar weight = 85 g/mol) is 133 torr at 0◦C andthe vapor pressure of pure CH2Br2(molecu-