Give a fundamental description of the recrystallization process. Explain why it is required and how it can be executed.

Q: find the initial mole fraction and initial mass % of the solute (NaCl)

A: Mole fraction of NaCl = number of moles of NaCl/total moles  Number of moles = mass/molar mass  Mass…

Q: calculated

A: Part 1: We know that molarity is defined as the number of moles of solute present in per liter of…

Q: Explain different ways to induce recrystallization.

A: Recrystallization is a process in which the previously formed crystal were dissolved in a suitable…

Q: What advantages and disadvantages does water have as a recrystallization solvent?

A: Recrystallization is used to purify chemicals by dissolving both impurities and a compound is…

Q: Sodium nitrate nano3 weighing 50g was dissolved in water weighing 150 grams. What is the mass…

A: The mass of sodium nitrate is = 50 g The mass of water is = 150 g The mass fraction of sodium…

Q: Describe how to prepare 100.00ml of a 0.250M sodium chloride solution using sodium chloride powder.

A: Volume of solution = 100 mL OR 0.1 L

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: The instructions indicate to make sure the test tube is dry before adding the lauric acid for…

A: Colligative properties are those properties of a material that depends on the number of particle of…

Q: 2. When preparing a non-aqueous alcoholic solution that is required to be free of water: a. What…

A: Alcohols are the substances which do have O-H has the functional group. The predominant forces that…

Q: This is normally prepared by increasing the temperature of the solvent to allow the dissolution of…

A: This is normally prepared by increasing the temperature of the solvent to allow the dissolution of…

Q: 4. What do you mean by eutectic point? Discuss eutectic point with help of suitable diagram? Discuss…

A:

Q: In the process of a recrystallization, if crystals do not form upon cooling the solution, it is…

A:

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: Draw an outline of the recrystallization process- Assume all types of Impurities(Soluble, Insoluble…

A: Recrystallization is defined as a technique which is used to purify the solid compounds.

Q: What is fractional distillation and distillation with the use of a fractionating column; how it is…

A: By selective boiling and condensation, it is possible to separate components in a liquid mixture.…

Q: Why would buffered solution tests be compared to distilled water?

A:

Q: Draw a phase diagram showing how the phase boundaries differ for a pure solvent compared with a…

A: The explanation is given below-

Q: Recrystallization and Melting Points When performing recrystallization, it is imperative to cool…

A:

Q: using the theory of completely soluble distinguish between substitution and interstitial solid…

A: Solid solutions  are the  formed by mixing a second element (either impurity or solute) to a…

Q: Freezing Point of pure TBA (experimentally determined) = 22.90 °C. 8.09 (C)(kg solvent) mol solute…

A: #(b): Here the solvent is TBA and the solute is the unknown substance.  Freezing point of pure TBA =…

Q: How does the process of preparing an aqueous solution of known concentration from a stock solution…

A: Solution stoichiometry is mainly based on the calculation of moles and volumes. These two values are…

Q: In an experiment, is a 100% yield possible in recrystallization? Please explain.

A:

Q: Which of the following solvents is the best to use for recrystallization of Solute A? Hexane…

A: The recrystallization technique is generally used to purify of any compound in a proper solvent. The…

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

A:

Q: What is the problem with using a solvent with a very high boiling point for recrystallization?

A:

Q: Why must a boiling stone be added to a solution to be refluxed?

A: The boiling stone is added while refluxing the solution because -

Q: Why does the temperature not change while the pure cyclohexane is freezing? This question is based…

A: The molar mass of a solute can be determined by measuring the depression in the freezing point due…

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: Assuming that hexane and water obey the required solubility criteria, why could they still not be…

A: To choose the best solvent for re-crystallization the compound should less soluble in cool solvent…

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

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: Why do polar solute dissolves in polar solvent? And why does non polar solute dissolves in non polar…

A: The solubility of organic molecules is often summarized by the phrase "like dissolves like." This…

Q: How can the temperature and the vapour pressure in a fractional distillation be effectively…

A: Fractional distillation is a distillation process used to separate the liquid mixtures using…

Q: the differences between a Stober procedure and a water/oil emulsion procedure

A: In this question we have to describe the differences between a stober procedure and a water oil…

Q: Describe exactly how to prepare a series of 8 solutions of a reagent with dilution factor of 2…

A: The chemical solutions are diluted by using below formula,

Q: 1. What is the use of boiling chips? 2. List at least 3 limitations of using distillation as a…

A: Hello. Since your question has multiple parts, we will solve first question for you. If you want…

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.In using a burette, why is it important (a) to rinse it with a little of the solution it is going…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: In the preparation of 1,200 mL of 70% alcohol from stock absolute alcohol solution, what is the…

A: Here we will consider v/v % concentration, i.e. 70 % alcohol solution implies out of 100 mL solution…

Q: explain solvent solvent interaction and solvent solute interaction in 10 pages

A: Solute+ solvent → solution (a homogeneous mixture). Remember like dissolves like. In general polar…

Q: Briefly describe the principles for separating the components of a mixture by solvent extraction.

A: Extraction is the process of separation of substances from its aqueous solution by shaking with a…

Q: Determine the volume of dilute HNO3 (d= 1.11 g/mL and 19% pure) that can be prepared by diluting 50…

A: Interpretation -  To determine the volume of dilute HNO3 (d= 1.11 g/mL and 19% pure) that can be…

Q: Stirring a solid-liquid mixture has no effect on the rate at which a saturated solution forms.

A: Saturated solution is a type of solution in which no more solute can be dissolved in a given amount…

Q: How do we keep relative supersaturation low by controlling solute concentration?

A: ANSWER:-Option-3 is correct. 3.Concentration should be lower.

Q: In fractional distillation, the greater the length of a fractionating column: * the lower its…

A:

Q: Describe the preparation of 800 mL of 2 M HCl from the commercial reagent that is 37.5% HCl (%w/w)…

A: Volume of HCl =800 mL Molarity of HCl = 2 M Mass percent of HCl = 37.5 % Mass of Solution = 100 g…

Q: 1. Assuming that sand and sodium chloride are the impurities in a sample of benzoic acid, state…

A: A mixture is a substance that is made up by mixing more than two compounds or substances together.…

Q: In Purification by Recrystallization, why the solution must be filtered while hot?

A: Crystalization is a process in which the crystals i.e solid form of highly organised atoms or…

Q: Why is the freezing point of a pure solvent constant, while that a solution decrease with steady…

A: The depression is a colligative property in the freezing point of a solution i.e. it depends upon…

Q: Kindly decribe the effect of concentration on the colligative properties of a solution and…

A: There are certain properties which don't depend upon chemical composition or chemical constituent…