Using Dalton’s Law of Partial Pressure, explain how steam distillation is a useful technique for heat sensitive substances such as essential oils.

Q: What is the relationship between vapor pressure at a temperature and its melting point so that…

A: When a solid heated to give gas directly without leaving any residue is called sublimation this…

Q: What is the significance of crossing aline in a phase diagram?

A: The significance of crossing a line in phase diagram are discussed as shown below, Consider…

Q: 13. At what temperature and pressure do all three phases coexist? 14. At a constant temperature,…

A: 13) At first we need to know what is triple point. At particular temperature and pressure when three…

Q: Pure naphthalene melts at 80 °C. Pure I-naphthol melts at 123°C. All mixtures of these two…

A: A question based on phase diagram that is to be accomplished.

Q: Why is it not advisable to freeze a sealed glass bottle that is completely filled with water? Use…

A: On decreasing temperature volume is going to be decreased. The same thing happens in the freezer…

Q: Azeotropic mixtures mix with each other in all proportions, since the composition of the liquid and…

A: Azeotropes are a mixture of two or more liquids which cannot be separated by a simple distillation…

Q: What effect does the presence of impurity have on the melting point?

A: Melting point :-  The temperature at which solid and liquid phases of a substance are in equilibrium…

Q: Flammable liquids burn only when their vapor is mixed with air in the appropriate concentration.…

A: We have to tell which option is correct from given choices of options by telling what must to be…

Q: (a) CH3CH2NH2 (b) CH3CH2NHCH3 (c) CH3CH2CH2F 2. Highlight the predominant intermolecular…

A:

Q: How would the observed boiling point of ethanol and water be affected if distillation was performed…

A: The boiling point of a compound is the temperature at which solution pressure is equal to the…

Q: Discuss how relative humidity in a cold storage room can influence the vapor pressure deficit.

A: Interpretation -  To discuss how relative humidity in a cold storage room can influence the vapor…

Q: Arrange in the correct order. 1. Distillation 2. Reflux     Question 1 options:   It is a…

A: Given are two definitions.

Q: Compare the specific heat of crystallization of sodium thiosulfate pentahydrate with the…

A: Sodium thiosulfate pentahydrate is a hydrated salt has a low melting point of 48 degree celsius.…

Q: If you were to consider only intermolecular forces and ignore any effects of mass, where would…

A: Generally, a particular state (liquid or solid or gas) of a substance depends on teperature,…

Q: Roughly draw the phase diagram of a pure compound and predict the solid-liquid-gas states, including…

A: Solid, liquid, and gaseous phases of a substance are related to each other, and the graph shows the…

Q: Illustrate the phase diagram of acetone and explain your findings.

A: Phase diagram of any system is the diagram which describes the change in the physical state of that…

Q: The melting point of sodium iodide is 661 °C and the melting point of water is 0 °C. Explain why the…

A: Melting point of NaI and water as 661°C and 0°C, respectively.

Q: Trans-oleic acid (18:1,D9) has a melting temperature of (44.5C) and cis-oleic acid (18:1,D9) has a…

A: Since we know that the melting point of any molecule is proportional to the effective packing of the…

Q: Table of Vapor Pressures at Varying Temperatures Based on the Antoine Equation Pressure of Pressure…

A: 1:1 (v/v) means when equal volumes of both the components were used.

Q: Temperature (°C) Vapor Pressure (kPa) 51.38 °C 38.057 kPa 60.30 °C 52.929 kPa • The 2-point…

A:

Q: What is the equilibrium vapor pressure of diethyl ether and ethanol at room temperature…

A: Pressure vs Temperature plot is given for Diethyl ether, ethanol and water.

Q: This graph shows how the vapor pressure of three liquids varies with temperature: 900 800 700 600 +…

A: 1.

Q: describe the safety precautions you must take when removing the flask from the boiling-water bath

A: The safety precautions that one should take are:

Q: Enlist the uses of alcohol in extemporaneous compounding

A: We are to list uses of alcohol in extemporaneous compounding.

Q: List the following compounds in the order of increasing melting points.  LiF, NaCl, CaO Justify your…

A: A question based on melting point, which is to be accomplished.

Q: Use the below heating curve for compound ZYX to determine the specific heat capacity of the liquid.…

A:

Q: Why is ‘‘distillation’’ a purifying technique?

A: Answer Distillation is a purifying technique. Distillation is…

Q: Chemistry __________ will have the highest boiling point. 3,4-diethyl-octanol 2,3-dimethyl-octanol…

A: Given  3,4-diethyl-octanol 2,3-dimethyl-octanol 2-ethyl-hexanol ethanol decane Higher Boiling Point…

Q: What weight of NaCl in 800g acetone is needed to bring boiling point to 60°C? (Boiling point of pure…

A: The formula for calculating the elevation in boiling point is given by: ∆Tb  = i × Kb × mWhere ∆Tb…

Q: **11.1.3. Air at 80°F and 1 atm has a dew point of 40°F. What is the relative humidity of this air?…

A:

Q: match the following    0.110 m CoI2      A. Highest boiling point     0.180 m NaCH3COO   B. Second…

A:

Q: Isopropanol is a liquid at room temperature. It is dangerous to heat volatile liquids over a Bunsen…

A:

Q: Which of the following is/are TRUE about simple distillation technique? a. It is used to separate…

A: Distillation is a technique that is used to separate mixture of liquids depending upon the boiling…

Q: Illustrate the phase diagram of ethyl alcohol and explain the findings.

A: Phase equilibria is based on Gibb’s Phase rule in which the number of degrees of freedom is given by…

Q: How do cohesive force and adhesive force explain the absorption of water by tissue paper? For a…

A:

Q: Constant-boiling mixtures that cannot be further purified by distillation, caused by intermolecular…

A: It's a azeotropic solution DEFINITION : it is mixture of two or more liquid whose proportion can not…

Q: 4. A young chemist has synthesized what he believed to be acetaminophen. He measured the melting…

A: Acetaminophen should have melting point exactly between the range of 169-170.5 oC as per literature…

Q: What is the amount of energy that needs to be provided to concentrate 50 m³ of fermentation…

A: Given :   Heat of vaporization = 2270 KJ/Kg…

Q: vacuum distillation, the surrounding pressure inside a chamber is lowered so the solvent boils at a…

A: The relation between Tmperature and pressure is governed by Clausius-Claypeyron equation:…

Q: Explain the PVT behavior of pure substances with appropriate examples.

A: For the given pure substance, a typical pressure-temperature diagram at constant volume.

Q: Aside from London dispersion forces, which substance d interactions to be effective?

A: There are different types of forces act between the molecules:- Hydrogen bonding Dipole-dipole…

Q: Could the following compound mixtures be separated by simple distillation? Explain why or why not?…

A: We have given that  Could the following compound mixtures be separated by simple distillation?…

Q: hat happens to the volatile liquid that is placed in the flask? 1. All of it leaves 2. It remains a…

A: Interpretation: We have to explain what happens when volatile liquid is placed in flask.

Q: Illustrate the phase diagram of ethyl alcohol and explain your findings.

A: Ethanol is a liquid at standard conditions. However, at low temperature and/or very high pressures…

Q: Explain the behavior of a cooled and remelted sample.

A: Given- A capillary shows a substantially higher melting point of 145°C. Repeated recrystallization…

Q: A solution has a boiling point of 80.1°C at standard pressure. Its latent heat of vaporization is…

A: An equation that has been used to calculate the heat of vaporization if two different vapour…

Q: Do X-ray diffraction structures correspond to their solution structure?

A: X-RAY DIFFRACTION: X-ray diffraction is a method used to determine the structure of crystals by the…

Q: Vapor Pressure (kPa) 120 100 80 60 40 20 0 0 10 20 30 50 60 Temperature (C) 40 70 80 90 100 The…

A: At the boiling point of water , the atmospheric pressure and vapour pressure of the water at given…