In Dumas method for determination of molar mass for a volatile liquid, its vapor

Q: Cite Five Real-Life Applications of Cooling Curve and Freezing Point Determination.

A: Real Life application of Cooling curve and Freezing point determination-   (1) Cooling coughs is one…

Q: aphthalene has a relatively high vapor pressure for a solid (because of its volatility, naphthalene…

A: Naphthalene is a solid which has a relatively high vapor pressure. This is because of its…

Q: Sucrose, a product of sugarcane manufacturing process, is highly soluble in water like many sugars,…

A: Colligative properties of a solution depends on the amount of solute present in the solution, not on…

Q: The freezing temperature of a solution produced by dissolving 25 g of a solid solute in 1.5 L of…

A: The boiling point of solution can be calculated by using following formula: Where ΔTF = freezing…

Q: 2. While determining the pressure during the Dumas experiment, if the barometric pressure reported…

A: GIVEN:-

Q: Boiling point is a temperature where the liquid just changes to vapour state. Select one: O True O…

A: Boiling point : It is the temperature where the vapour pressure of the liquid becomes equal to the…

Q: if everything is being equal, as molecular weight decreases does the boiling point?

A: Elevation of boiling point is given by:

Q: does the boiling point of liquid solution independent of its composition (yes or no?)

A: To explain: does the boiling point of a liquid solution independent of its composition.

Q: ΔS when 1 mol of frozen ethanol melts

A: The entropy change when 1 mole of solid ethanol melts at its normal melting point is 29.4 JK 'mol'.…

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: When a liquid is in dyn vhich of the following A) Increasing temp

A: According to the question, we need to identify the false statement. When a liquid is in dynamic…

Q: The point on a phase diagram is where three phases of matter exist in equilibrium. The point is…

A: Given:

Q: List two applications of freezing point depression.

A: Colligative properties: The colligative properties are those properties of solutions that depend on…

Q: what can we discuss about the graph below about the relationship of partial molar volume of alcohol…

A: Solutions- This is the relationship between ethanol and water.

Q: Which interactions and processes contribute to the dissolution of ionic compounds in water? Check…

A: Ionic compounds are dissolved in water due to polarisation. Any process or interaction that causes…

Q: The table below lists factors that may affect the rate at which solids and gases dissolve. Fill in…

A:

Q: How can we predict that the vapor pressure of a gas will increase or decrease as the temperature…

A: vapor pressure of a gas will increase as the temperature rises. Increase in temperature of gas…

Q: Select all that apply. Select all processes below that are part of the dissolution process. Break…

A: From the dissolution process we get answer

Q: Tendency of the solute to spread throughout the solution until the composition is homogeneous

A: We have to explain, tendency of the solute to spread throughout the solution until the composition…

Q: One of the following is incorrect according to fractionated column: * O The surface area is directly…

A: Fractionated column should have the vapor covering the smallest surface area possible so that more…

Q: In calculating the molar mass of the vapor using the Dumas Method, decreasing the value of the…

A: Option 3 i.e. a decrease in the value of molar mass. As we know while calculating the molar mass of…

Q: In the phase diagram for water, indicate the direction that the solid–liquid and liquid-gas…

A: When a non-volatile solute is added to a solvent, there will be an elevation in the boiling point of…

Q: Phase changes;  Show the water phase changes diagram and how it's difficult from the Carbon dioxide…

A: Phase diagrams shows the preffered physical states of matter at different thermodynamic variables…

Q: Is it correct to say that "The lower the Intermolecular Force, the shortest the evaporation time"?

A: Evaporation is counted as surface phenomenon that results in the conversion of liquid molecules into…

Q: Explain why inorganic compounds such as MgCO,, which are unsta- ble when exposed to heat, can induce…

A: since you have posted multiple questions in a session, we are entitled to answer only first…

Q: which one will have the higher value for vapor pressure when it is in the liquid phase? SeO3 or…

A: Vapour pressure: Vapour pressure of any material is a tendency of a material to change into the…

Q: A solution of acetic acid CH3COOH  and water is boiling at  100.4°C . A sample of the vapor…

A: The mass percentage of acetic acid in vapor phase is 10 % which means 10 g of acetic acid and 90 g…

Q: what is the effect of sodium chloride and soap solution on the surface tension of water? then, how…

A: Answer -  The effect of sodium chloride  on the surface tension of water - NaCl salts cause an…

Q: Describe the process inside the test tube during boiling point determination

A: Boiling Point is the temperature at which the vapour pressure of the liquid is equal to the…

Q: Boiling point is indirectly proportional to volatility. O A. True O B. False

A: Answer Boiling point is indirectly proportional to the Volatility

Q: How do you call in binary phase diagram, the line which is described as the locus of all system that…

A:

Q: Describe method of acid vapor Pressure.

A: Menometric method

Q: which one will have the higher value for vapor pressure when it is in the liquid phase OF2 or XeF2

A: Given : We have to tell which among the following has high vapor pressure.

Q: Indicate the expected van't Hoff factor for the following compounds. Compound Expected Van't Hoff…

A:

Q: Naphthalene has a relatively high vapor pressure for a solid (because of its volatility, naphthalene…

A: Sublimation is defined as the conversion of solid to vapor directly. Sublimation temperature of…

Q: An azeotrope is, a mixture in which the liquid and vapor phases are at equilibrium with each other…

A: The given statement is- An azeotrope is, a mixture in which the liquid and vapour phases are at…

Q: If the pressure exerted on a liquid is increased, while the temperature is held constant, what type…

A: A phase diagram is given. We have to tell if the pressure exerted on a liquid is increased, while…

Q: Which interactions and processes contribute to the dissolution of ionic compounds in water? Check…

A: step1:dissolution of ionic comound in water:when ionic compound disolve in water , the ion in the…

Q: what is expected it to take more or less energy to promote of solid propanone to liquid propanone at…

A: Standard data: The latent heat of fusion of propanone = 5.7 kJ/mol The heat of vaporization of…

Q: What is the dispersion force?

A: Atoms are combined to form molecules and it is boned by chemical bonds. There are different types o…

Q: what is london dispersion force and what are some examples of it?

A: London dispersion forces are the intermolecular forces exist in all molecules regardless of…

Q: et Vaporized Which unknown liquid did you use? Mass (g) of empty flask, Al- foil cover, and rubber…

A: Given:   Trial-1 Trial-2 Mass of empty flask, Al-foil cover and rubber band 107.428 100.428…

Q: Calculating mole fraction.

A:

Q: Answer the following situation about intermolecular forces ( The situation in general is all about…

A: The forces which exist between neighboring atoms, molecules or ions can be force of attraction or…

Q: The dispersed phase of a colloid can be a a. gas b. liquid c. solid d. more than one choice is…

A: We have to tell which option is correct

Q: What is the phase diagram for t-Butyl Alcohol in celsius? With the freezing point, triple point, and…

A: Temperature (oC) Pressure (atm) Triple point 26 0.05579 Freezing point 25.5 1.005 Boiling…

Q: how do we find the average of the molar mass of these unkown liquid? how to express the water bath…

A: Given equation,      MM = d × R × TP