. Each of the following substances is a liquid at −50°C. Place these liquids in order of increasing vapor pressure. dimethyl ether (CH3OCH3), propane (C3H8), ethanol (CH3CH₂OH)

The pressure above a pure sample of solid Substance X at -180. °C is lowered. At what pressure will the sample sublime? Use the phase diagram of X below to find your answer. pressure (atm) 0.4- 0.2- solid liquid 0. 200 temperature (K) gas 400 Note: your answer must be within 0.025 atm of the exact answer to be graded correct. atm х

The temperature on a sample of pure X held at 0.53 atm and – 168. °C is increased until the sample sublimes. The temperature is then held constant and the pressure is decreased by 0.35 atm. On the phase diagram below draw a path that shows this set of changes. pressure (atm) 3 دنا 2- 0. ایل 200 temperature (K) 400 x 5

The pressure above a pure sample of solid Substance X at -142. °C is raised. At what pressure will the sample melt? Use the phase diagram of X below to find your answer. بالا pressure (atm) 0 0. atm solid liquid 200 temperature (K) Note: your answer must be within 0.125 atm of the exact answer to be graded correct. gas X 400

Four liquids are described in the table below. Use the second column of the table to explain the order of their freezing points, and the third column to explain the order of their boiling points. For example, select '1' in the second column next to the liquid with the lowest freezing point. Select '2' in the second column next to the liquid with the next higher freezing point, and so on. In the third column, select '1' next to the liquid with the lowest boiling point, '2' next to the liquid with the next higher boiling point, and so on. Note: the density of water is 1.00 g/mL. solution 2.2 g of ethylene glycol (C₂H602) dissolved in 200. mL of water 2.2 g of sucrose (C12H22011) dissolved in 200. mL of water 2.2 g of potassium nitrate (KNO3) dissolved in 200. mL of water 200. mL of pure water freezing point (choose one) (choose one) (choose one) (choose one) X boiling point (choose one) (choose one) O (choose one) (choose one)

Four liquids are described in the table below. Use the second column of the table to explain the order of their freezing points, and the third column to explain the order of their boiling points. For example, select '1' in the second column next to the liquid with the lowest freezing point. Select '2' in the second column next to the liquid with the next higher freezing point, and so on. In the third column, select '1' next to the liquid with the lowest boiling point, '2' next to the liquid with the next higher boiling point, and so on. Note: the density of water is 1.00 g/mL. solution freezing point boiling point 7.7 g of hydroiodic acid (HI) dissolved in 500. mL of water (choose one) O (choose one) 7.7 g of potassium hydroxide (KOH) dissolved in 500. mL of water (choose one) C (choose one) O 7.7 g of calcium chloride (CaCl2) dissolved in 500. mL of water (choose one) C (choose one) O 500. mL of pure water (choose one) (choose one)

Study the following phase diagram of Substance X. pressure (atm) 24 solid 100 liquid 200 temperature (K) Use this diagram to answer the following questions. a gas 300 Suppose a small sample of pure X is held at -12. °C and 12.0 atm. What will be the state of the sample? Suppose the temperature is held constant at -12. °C but the pressure is decreased by 6 atm. What will happen to the sample? Suppose a small sample of pure X is held at -12. °C and 12.0 atm. What will be the state of the sample? Suppose the temperature is held constant at -12. °C but the pressure is decreased by 6 atm. What will happen to the sample? Suppose, on the other hand, the pressure is held constant at 12.0 atm but the temperature is decreased by 116. °C. What will happen to the sample? (choose one) (choose one) (choose one) (choose one) (choose one)

Four liquids are described in the table below. Use the second column of the table to explain the order of their freezing points, and the third column to explain the order of their boiling points. For example, select '1' in the second column next to the liquid with the lowest freezing point. Select '2' in the second column next to the liquid with the next higher freezing point, and so on. In the third column, select '1' next to the liquid with the lowest boiling point, '2' next to the liquid with the next higher boiling point, and so on. Note: the density of water is 1.00 g/mL. olo solution freezing point boiling point Ar 5.5 g of hydroiodic acid (HI) dissolved in 200. mL of water (choose one) (choose one) 5.5 of calcium chloride (CaCl2) dissolved in 200. mL of water (choose one) (choose one) 5.5 g of potassium hydroxide (KOH) dissolved in 200. mL of water (choose one) (choose one) 200. mL of pure water (choose one) (choose one) ?

Maps [References] Dry nitrogen gas is bubbled through liquid benzene (C6 H6 ) at 23.0°C. From 140.0 L of the gaseous mixture of nitrogen and benzene, 25.0 g benzene is condensed by passing the mixture through a trap at a temperature where nitrogen is gaseous and the vapor pressure of benzene is negligible. What is the vapor pressure of benzene at 23.0°C? Vapor pressure torr Submit Answer Try Another Version 8 item attempts remaining 11:16 PM 33 F 12/6/2021 earch

Four liquids are described in the table below. Use the second column of the table to explain the order of their freezing points, and the third column to explain the order of their boiling points. For example, select '1' in the second column next to the liquid with the lowest freezing point. Select '2' in the second column next to the liquid with the next higher freezing point, and so on. In the third column, select '1' next to the liquid with the lowest boiling point, '2' next to the liquid with the next higher boiling point, and so on. Note: the density of water is 1.00 g/mL. solution 7.6 g of ethylene glycol (C₂H60₂) dissolved in 500. mL of water 7.6 g of propylene glycol (C3H8O₂) dissolved in 500. mL of water 7.6 g of potassium acetate (KCH3CO₂) dissolved in 500. mL of water 500. mL of pure water freezing point (choose one) O (choose one) (choose one) (choose one) X boiling point (choose one) (choose one) (choose one) (choose one) Ś