Hydroquinone is an antioxidant that is also used as a photographic reducer and developer. The normal boiling point of hydroquinone is 310°C. Calculate the pressure at which hydroquinone will boil at 200°C given that its aHvap is 73.38 kJ/mol.

Q: The phase diagram for helium is shown. Liquid  helium can exist in two possible forms; Helium II and…

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Q: a. What mass of ethylene glycol (C2H6O2) must be added to 221.0g of water to obtain a solution with…

A:

Q: The Δ?vap of a certain compound is 24.93 kJ · mol−1 and its Δ?vap is 70.25 J · mol−1· K−1. What is…

A:

Q: The triple point of a pure substance is at 0.173 atm and 175 K. The freezing point of the substance…

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Q: Hot apple cider is often flavored with cloves, giving the beverage a distinctive aroma. One of the…

A: Given:

Q: The standard enthalpy of vaporization (H°vap) of carbon tetrachloride (CCl4) is 34.6 kJ/mol. The…

A:

Q: For each pair, predict which one will have the higher value for vapor pressure when it is in the…

A: For each pair, predict which one will have the higher value for vapor pressure when it is in the…

Q: The vapor pressure of liquid methanol, CH30H, is 100. mm Hg at 294 K. A 9.05x10-2 g sample of liquid…

A: The explanation is given below-

Q: Given that the heat of vaporization of 1 propanol is 47.2 kj/mol, and the vapor pressure is 10.0…

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Q: Calculate the approximate boiling point of a mixture of bromobenzene and water at atmospheric…

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A: The interparticle forces are depends on the nature of atoms and polarity of molecule.

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Q: Arrange HCI, H2O, SiH, in order of increasing boiling point temperature: HCI < SiH, « H2O O SİH4 <…

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Q: Ethanol has a normal boiling point of 78.3 C. Why is the normal boiling point higher than methanol…

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Q: What is the melting point for iodine at 1 atm?

A: Standard pressure - The standard pressure of the iodine is given to be 1 atm. Melting point - The…

Q: A solution of carbon tetrachloride and acetic acid CH3COOH that is 90.% carbon tetrachloride by mass…

A: Given:

Q: Mercury (Hg) vapor is toxic and readily absorbed from the lungs. At 20.∘C, mercury (ΔHvap = 59.1…

A: Given data Vapor pressure [ at T1 = 20 oC ]     ,    P1 = 1.20x10-3 torr ΔHvap = 59.1 kJ/mole Safer…

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A: Plot of  ln(P) Vs 1/T, to determine the enthalpy of vaporisation.

Q: Sketch the phase diagram for carbon dioxide. If you have carbon dioxide at 1.0 atm and 25 °C, could…

A: Phase diagram for carbon dioxide,

Q: Ethylene glycol is used in antifreeze.  What is the vapor pressure of ethylene glycol at 100 oC in…

A:

Q: What is the vapor pressure of ethanol (in mmHg) at 51.7°C if its vapor pressure is 400.0 mmHg at…

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Q: The vapor pressure of butyl alcohol (C,H,OH) at 70.1°C is 0.1316 atm; at 100.8°C, it is 0.5263 atm.…

A:

Q: The vapor pressure of benzene is 224 mmHg at 45 °C and 648 mmHg at 75 °C. (a) Find the enthalpy of…

A:

Q: At the boiling point of carbon disulfide, CS2 , ∆Hvap = 26.9 kJ/mol and ∆Svap = 84.5 J/mol.K.…

A: The boiling point can be calculated as follows-

Q: In what phase does water exist at its triple point?

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Q: In what order should the boiling points of the substances MgO, Ne, and H2O decrease? Group of answer…

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Q: Arrange the following in order of increasing normal boiling point. Vapor Pressure Versus Temperature…

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Q: 1. The vapor pressure of water at 25C is 23.76 torr. If 1.25g of water is enclosed in a 1.5L…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: The following compounds, listed with their boiling points, are liquid at –10ºC: butane, –0.5ºC;…

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Q: At 23.8 °C, the vapor pressure of isopropyl alcohol (rubbing alcohol) is 40. torr. At 39.5 °C, the…

A: Enthalpy of vaporization can be calculated by following formula

Q: Which one has the highest vapor pressure and why? a. Alcohol b. Sea water c. Water d. Mercury e.…

A: at boiling point the vapor pressure of the substance that equal to atmospheric pressure  as the…

Q: The vapor pressure of methanol at 20.0 oC is 97.7 torr. The normal boiling point of methanol is 64.7…

A: Given data,T1(Temperature of methanol)=20.0oC=20.0+273.15=293.15KP1(pressure of methol)=97.7 torrT2(…

Q: The vapor pressure, P, of a certain liquid was measured at two temperatures, T. The data is shown in…

A: The graph will be plotted between ln P (y-axis) v/s 1/T (x-axis). The points will be as followed:…

Q: Carbon tetrachloride, CCl4, was once used as a dry cleaning solvent, but is no longer used because…

A: The temperature at which the vapor pressure of a liquid becomes equal to an atmospheric pressure is…

Q: The vapor pressure of methanol (CH₃OH) at 25°C is 127.2 torr. A 6.25-g sample of methanol is placed…

A: Mass of Methanol (m) = 0.658 g

Q: 1. Adding 1 mol of NaCl to 1 kg of water lowers the vapor pressure of water more than adding 1 mol…

A: Lowering of the vapor pressure is a colligative property, which depends on the number of solute…

Q: 68. The vapor pressure of butyl alcohol (C,H,OH) at 70.1°C is 0.1316 atm; at 100.8°C, it is 0.5263…

A: Given that, T1=70.1oC T1=70.1 +273 T1=343.1 K T2=100.8oC T2=100.8 +273 T2=378.8 K P1=0.1316 atm…

Q: Water, Methanol, Ethanol, and Acetone Which substance do you predict has the strongest…

A: The correct answer about intermolecular force is given below

Q: At 37 degrees celsius, the vapor pressure of 300.0 g of water was reduced from 0.062 atm to 0.058…

A:

Q: Which region includes the lowest pressures and highest temperatures at which the phase of X is…

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Q: Two volatile substances are mixed with one another so that substance A has a mole fraction of 0.88.…

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Q: 12.39 Which member in each pair of liquids has the lower vapor pressure at a given temperature?…

A: Vapor pressure: The pressure exerted by the molecules  is called vapor pressure of any molecule. But…

Q: 1. 0.17 m Fe(NO3)2 A. Highest boiling point 2. 0.18 m ZnBr2 B. Second highest boiling point 3. 0.14…

A: Given :  Match the following questions :

Q: The Δ?vapΔ⁢Hvap of a certain compound is 47.57 kJ·mol−147.57 kJ·mol−1 and its Δ?vapΔ⁢Svap is 67.46…

A:

Q: 1. The point where all three phases of matter exist is called the 2. The triple point for water is…

A: Hi, since you have multiple subpart questions, we will answer the first three questions for you.…

Q: What is the vapor pressure of ethanol (in mmHg) at 54.1°C if its vapor pressure is 400.0 mmHg at…

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Q: 1. Describe the nature of liquids by relating it with intermolecular attractive forces. 2. Explain…

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Q: Does adding 1 mol of NaCl to 1 kg of water lower the vapor pressure of water to the same extent, a…

A: Yes, addition of 1 mol of NaCl to 1 kg of water lowers the vapor presure of water to the same…

Q: point of isooctane, a gasoline component, as 99.2ºC and its enthalpy of vaporization as 35.76 kJ…

A: Enthalpy of vapourisation = 35760 J/mol  R = 8.314 J/Kmol  T1 = 99.2°C = 99.2+273 = 372.2 K  P1= 1…

Q: Methyl salicylate, C₈H₈O₃, the odorous constituent of oil of wintergreen, has a vapor pressure of…

A: Clausius- Clapeyron equation The equation which is used to calculate vapor pressure at a different…