What limitations are encountered in the application of sublimation as a general method of purification?

Q: 9. In which solvent is iodine more soluble? Give experimental evidence that supports your answer.

A: Non-polar solvent diethyl ether should be the best solvent for iodine

Q: Cis-2- pentene and ethanol were added to an aqueous solution of bromine in two separate conical…

A: Alkenes react with a solution of bromine in CCl4 solution to form a dibromo alkane in this reaction…

Q: Given that a mixture of nitric acid (bp 86 °C) and water forms a maximum-boiling-point azeotrope…

A: Solution.                                 Given That mixture of nitric acid =  bp 86 °C…

Q: Can a mixture of trichloromethane and propanone be separated into the pure components by fractional…

A: Given: Mixture of trichloromethane and propanone.  To find: Can it be separated into pure components…

Q: Construct an approximate boiling-point-composition diagram for a benzene– methanol system. The…

A: A benzene -methanol solution is an example of a minimum -boiling azeotrope. In the case of…

Q: 1-There are many opportunities during a recrystallization to lose crystals. How could you improve…

A: Since you have posted multiple questions, we are solving only first question for you. If you want…

Q: What should you do and not do when mixing the organic and aqueous phases during a liquid extraction?…

A: The amount of a substance that moves into the solvent depends on the interaction between substance…

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: How does the volume of a solvent affect the purity of the material in recrystallization?

A:

Q: Prepare the following solution quantitatively using boiled distilled water  1. 250.0 mL 1.0 M stock…

A: 1.  250.0 mL 1.0 M stock HCl from 3.0 M HCl     Molarity ( M1) = 1.0 M     Volume  ( V1 ) = 250.0 mL…

Q: A melting "point analysis is a bit of a misnomer; how so? What do we measure when doing such an…

A: Melting point analysis helps in analyzing the purity of the compound.

Q: Prepare your solution and write a VERY brief description of how you did it. Make sure you mention…

A: Secondary standard solutions is a solution where the concentration of solute dissolved in it has not…

Q: 7.2. What is the influence on the phase diagram if the atmosphere pressure is changed during the…

A:

Q: Describe the distillation of partial miscible liquid in terms of phase diagram.

A:

Q: What are the criteria for a successful determination in gravimetric analysis?

A: Gravimetric analysis is a technique through which the amount of an analyte (the ion being analyzed)…

Q: Co-Perciptation

A: In this question we have to explain the following types of Co-Perciptation 1- Surface Adorption    2…

Q: why is it necessary to remove a stopper from a separatory funnel when the liquid is being drained…

A: We have to tellwhy is it necessary to remove a stopper from a separatory funnel when the liquid is…

Q: Describe in detail the process of purification of a compound via crystallisation by gradual cooling.…

A: Purification of compounds can be achieved by various processes such as crystallization, sublimation,…

Q: Beer's law why does the procedure for measuring the concentration of a solution photometrically…

A: For the calibration of spectrophotometer blank solution is needed.

Q: Uranium tetrafluoride and zirconium tetrafluoride melt at 1035 °C and 912 °C respectively. They form…

A: The melting points of uranium tetrafluoride and zirconium tetrafluoride are given as 1035°C and…

Q: The Dumas tube containing the volatile liquid vapor is removed from the boiling water bath and…

A: Dumas tube is used to determine the molar mass of the unknown liquid.

Q: explain why the boiling point of a two component mixture rises slowly throughout a simple…

A: A temperature is not absolute. When you measure a temperature, you are measuring a distribution of…

Q: Describe the temperature-composition diagram. What did you observe with the temperature of the vapor…

A: Type of chart used to show conditions at which thermodynamically distinct phases occur and coexist…

Q: Prepare a written copy of the complete separation scheme for a solution that contains Ag+, Fe3+,…

A: At first Hcl is added,and Agcl precipitate formed and Ag+Separated. Then the cation solution treated…

Q: 1. What is the effect of varying the amount of solvent on the electrical conductivity of solution?…

A: 1. The more concentrated a solution is, the higher the conductivity is. In most cases it is a…

Q: Fractional distillation of a binary mixture leaves behind a liquid consisting of both components.…

A: Fractional distillation is the technique to separate miscible liquid with different boiling points.…

Q: cite literature that gravimetric analysis is used to test the purity of any soup product

A:

Q: Describe how to prepare  100 mL of approximately 60% (w/v) NaOH from solid NaOH

A: Given :-  %(w/v) of NaOH solution = 60%  Volume of solution = 100 mL  To describe :-  Its…

Q: Write a conclusion: Discuss the possible reason(s) the food dyes diffuse to form distinct zones and…

A: When a drop of food dye is added to water, it will diffuse rather than the mixing process. Basically…

Q: Give clear handwritten solution- What is the normal boiling point of this compound? (Using phase…

A: Before solving this question, in the phase diagram assignment of the phases and equilibrium curves…

Q: Explain the simple distillation process in 10 sentences Enumerate all the apparatus used in the…

A: Simple distillation is the process in which two liquids can be separated out from the solution…

Q: Briefly explain the principles involved in the separation of the components of a mixture by solvent…

A: Extraction is a method used for the separation of organic compound from a mixture of compound. This…

Q: A melting "point" analysis is a bit of a misnomer: how so? What do we measure when doing such an…

A: By the term melting point, we mean that it is a fixed point of temperature where a substance or…

Q: In distillation 1. What is the reason for discouraging the formation of bubbles inside the…

A: Distillation is a method of separating components present in a liquid mixture based on difference in…

Q: Why is it important to perform a fractional distillation slowly? What happens if a fractional…

A: Fractional distillation

Q: H, PO, ionizes in water. Phases are optional.

A: Chemical equation,  H3PO4 + H2O <--------> H2PO4- + H3O+    Ka1 : 7.5 • 10^-3 = [H2PO4-]…

Q: What are the significance of the melting point determination in pharmacy? (own words)

A: Melting point is the temperature at which solid Substance changes into liquid.  The branch of…

Q: (d) Why is complete solid solubility likely to occur in substitutional solid solutions but not in…

A: When we talk about substitutional solid solution the solute and solvent possess similar properties…

Q: Isopropanol and water are miscible, meaning they can be combined in any ratio. So why were they…

A: 1. Isoprapanol and water are miscible due to formation of intermolecular hydrogen bonding.  2. But,…

Q: Prepare a written copy of the complete separation scheme for a solution that contains Ag+, Fe3+,…

A:

Q: A student trying to determine if a white solid is a true hydrate heats the sample and finds that…

A: A true hydrate is the one that undergoes evolution of water upon heating and the residue obtained…

Q: te the r

A: Given:

Q: Analyze the effects caused by various impurities on precipitate during the gravimetric analysis and…

A: Gravimetric analysis is one of the techniques in which the amount of a particular component of an…

Q: When conducting a recrystallization what should generally be true when comparing the compounds…

A: Recrystallization is an experimental technique of separating pure compound from the solution…

Q: Filter paper is usually a poor material on which to powder a solid sample before introducing it…

A: Filter paper is not used as material on which substance can be powdered before its addition into…

Q: Explain why the boiling point of a two-component mixture rises slowly throughout a simple…

A: Let us take an example of an ideal solution made up of two liquids, as for example benzene (bp 80…