Describe in outline how you would determine the molar mass of cyclohexane, C_6H_12, a volatile liquid experimentally. State and explain any two precautions taken in the determination process.

Q: XB Based on the liquid-vapor equilibrium figure above, answer the following questions. a. Label all…

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Q: 3. The addition of 5 grams of a compound to 750 g of CC14 lowered the freezing point of the solvent…

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Q: Why is aluminum foil punctured in an experiment to determine the partial weight of volatile liquids?

A: In Dumas method for the determination of the molecular weight of a volatile liquid, the Erlenmeyer…

Q: If acetone is miscible with both water and xylene, then why can’t all three form a clear single…

A: "Like dissolves Like" which means polar solute dissolves in polar solvents and non- polar solute…

Q: What is freezing point temperature of a 20% aqueous sucrose (C12H22O11) solution?

A: Given, 20% aqueous sucrose solution Mass of sucrose (C12H22O11) = 12×12+22×1+16×11144+22+176342…

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: The lattice enthalpy of KCI is positive, indicating that it takes energy to break the ions apart in…

A: The dissolution of ionic compounds is exothermic process because the ionic compound is a stable…

Q: Determine the mole fraction of ethanol in a 10% by volume aqueous ethanol solution. Given: Methanol…

A: A numerical problem based on mole fraction, which is to be accomplished.

Q: Calculate the mass of water vapor present in a room of volume 400 m3 that contains air at 290C when…

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Q: 5. In the Dumas method for determining the molar mass of an unknown volatile liquid, a sample of a…

A: Given that, the molar mass of an unknown liquid is determined by the Dumas method. The volume of the…

Q: Using your knowledge of the “like dissolves like” generalization, determine which solute ethanol…

A: Like dissolves like means polar solute dissolves in polar solvent while non-polar solute dissolves…

Q: An unknown compound is found to contain only carbon and hydrogen. It is a liquid that boils at 49 C…

A: The empirical formula of unknown compound is calculated as,

Q: Describe how fractional distillation can better purify a mixture of liquids by discussing a liquid…

A: To achieve a desired degree of separation of a mixture of liquids, the general method involves…

Q: The global atmospheric concentration in ppm measured at a laboratory in shown in the figure below.…

A: The given graph is : From the given diagram, it can be seen that the carbon dioxide concentration…

Q: Based on the following data, determine the molecular weight of the unknown solute. Note the "initial…

A: The given problem can be solved by using the formula as; ∆Tf=Kf m…

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: Substance Molecular Weight (g/mol) Density g/mL Melting point and Boiling point 0C…

A: The melting point, molecular weight, density, melting point, boiling point and solubility of benzoic…

Q: n biological systems, an ACTIVE transport process is one in which an important chemical component is…

A: Since you have posted multiple questions as per guidelines we can answer only one per session . If…

Q: The density of grain alcohol is 0.789 g/mL. Given that thedensity of water at 48C is 1.00 g/mL, what…

A: The specific gravity of grain alcohol has to be given,

Q: What are Volatile organic compounds (VOCs)?

A: Volatile organic compounds has to be given.

Q: a.Differentiate between freezing and refrigeration as methods used for food preservation. b. With…

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Q: The density of the solution prepared by dissolving 53.85 g of calcium chloride in 100 g of water at…

A: Mole fraction is a ratio of the number of moles of solute to the number of moles of a total…

Q: Define cohesion and adhesion, and how they can predict capillary action.

A: Adhesion can be defined as the sticking tendency of particles of different types of material.…

Q: The pKw of ammonia in water varies with temperature as follows :θ/°C         10         15…

A: The value of  pKb is the base constant. Base dissociation constant can be given by a general…

Q: 6) If the pressure on a liquid is changed from 200 kpa to 300 kpa, the temperature at which the…

A: 6) If the pressure on a liquid is changed from 200kpa to 300kpa, the temperature at which liquid…

Q: Which of the following refers to a composition in which its components cannot be separated by…

A: Distillation :- It is a method of separation of mixture of liquids based on their difference in…

Q: Calculate the mole fraction of ethylene glycol (C2H6O2 ) in a solution containing 20% of C2H6O2 by…

A: The solution is 20% ethylene glycol by mass,   means that each 100 g of this solution contain 20 g…

Q: Construct the hypothetical phase diagram for metals A and B between temperatures of 600°C and 1000°C…

A: Solution Phase diagram could be a graphical illustration of the physical states of a substance below…

Q: Write the ions present in solution of Sn(NO2)4. Express your answers as chemical formulas separated…

A: Ionic compounds are formed by the transfer of electrons. The cation donates the electrons and the…

Q: In what pressure range and in what temperature range must H2O exist in order for H2O1s2 to sublime…

A: The conversion of a solid directly into gas is called as sublimation. For example: Camphor and solid…

Q: Give a short description of the process shown in the figure below and identify what type of…

A: Sugar dissolves in water is a physical change because in this change no new substance is formed and…

Q: Explain the following terms giving a suitable example for each :(i) Aerosol(ii) Emulsion(iii)…

A: Aerosol: Aerosol is a word , which is used to describe the mixture of small solid particles or…

Q: Research on the process of desalination with the use of distillation. Write how vapor-pressure…

A: Desalination is a process that takes away mineral components from saline water. More generally,…

Q: Name one carboxylic acid that has applications in diagnostic tests, nutrition, or pharmacology.…

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Q: Which method of determining salinity is least likely to be used by current oceanographers

A: The concentration of salt present in the sea-water is termed as salinity. The salinity is measured…

Q: What limitations are encountered in the apolication of sublimation as a general method of…

A: The limitations are encountered in the application of sublimation as a general method of…

Q: 1. Which IMF or IMFs are correlated with molar mass? Describe this correlation

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

Q: Consider the solubility of caffeine in water (structure provided below). Identify which ONE of the…

A: Here we have to see the solubility of water.  Just remember one thing that is organic compounds are…

Q: A student prepared two beakers with identical sprigs of a water plant as shown in the figure below.…

A: The graph explaining the number of bubbles released in the beaker containing the plant at varying…

Q: Describe the molecular basis of the property of water re-sponsible for the presence of ice on the…

A: The melting point of water is 0oC . So whenever the temperature of the surroundings drops below 0oC,…

Q: What is the best explanation of this?

A: When soda bottle is opened up the CO2 is escaped out in the form of bubbles now we have to tell the…

Q: Determine the molarity and mole fraction of a 1.01 m solution of acetone (CH3COCH3) dissolved in…

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Q: Why do do volatile substances,like alcohol and acetone, produce a cooling effect on a surface from…

A: Volatile substances are those substances that can change their state from liquid to vapor phase…

Q: What is meant by coagulation of a colloidal solution? Describe any three methods by which…

A: Process of conversion of colloidal solution into suspension is defined as coagulation. Colloidal…

Q: The vapor pressures of two volatile organic compounds, compound 1 and compound 2, at 20 °C are 79.2…

A: Mole fraction in gas phase of compound 2 is represented by Y2. This will be calculated by…

Q: Indicate the principal type of solute-solvent interaction in each of the following solutions and…

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Q: 1. An evaluation of R was performed, following the procedure described in this module. The…

A: This question is simply based on the ideal gas equation and dalton's law of gases. The complete…

Q: During the solution process,  there are four different interacting forces involved: Hydrogen…

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.