Answered: Why is recrystallization not applicable…

Science

Chemistry

Why is recrystallization not applicable to samples which contain large amount of impurities?

Macroscale and Microscale Organic Experiments

7th Edition

ISBN:9781305577190

Author:Kenneth L. Williamson, Katherine M. Masters

Publisher:Kenneth L. Williamson, Katherine M. Masters

Chapter4: Recrystallization

Section: Chapter Questions

Problem 6Q

See similar textbooks

Related questions

Q: Explain different ways to induce recrystallization.

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

Q: Once you choose the appropriate solvent, how much solvent should you add to your sample to dissolve?…

A: A solution can be defined as the mixture that consists of two components; solute and solvent. Here…

Q: This method of purification is applied when the purity has a lower vapor pressure than the purified…

A: the process in which a substance directly goes from solid state to gaseous state without going…

Q: Which of the following could lead to a lowering of the melting point observed for a product? Select…

A: Option B, C and D are correct answer.

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

Q: Describe chromatography. Include the following words: Physical change, Intermolecular Forces,…

A: physical change: A change in the physical condition and properties of substance that is change.…

Q: Is recrystallization a good method for purifying any product?

Q: 8. Why should you boil the sample solution right before reaching the end point?

Q: Make a Flow chart diagram of the PROCESS OF RECRYSTALLIZATION

A: Recrystallization is characterized as the interaction in which grains of a crystal structure arrive…

Q: What are the dispersed phase and dispersion medium in milk?

A: Dispersed Phase: The phase or particles which are present in the form of colloidal particles is…

Q: Suggest various methods to remove temporary and permanent hardness of water with appropriate…

Q: What is the purpose of the laboratory exercise about simple distillation and fractional distillation

A: To refining the liquid through a separation process is known as distillation. The main purpose…

Q: In recrystallization, is it always good to have a high % recovery? Explain. What are the advantages…

A: In recrystallization, always good to have a high % recovery has to be explained below. The…

Q: What are some advantages of the membrane filter technique in the analysis of a water sample? Some…

Q: How can you prepare a set of solutions with concentrations spanning several orders of magnitudes?…

A: Explanation: A) serial dilution: A serial dilution is the stepwise dilution of a…

Q: Briefly explain why crystals form as the solvent cools during recrystallization.

A: We use recrystallization to remove impurities / purification in organic chemistry . For this process…

Q: Which is not required in recrystallization? a. solution is filtered at high temperature b.…

A: Remember this point, recrystallization is used for purify the crude sample of compound so that all…

Q: Why is it necessary to allow enough time for your samples to dry?

A: during the organic synthesis, product may contain the impurity due the presence of the solvent

Q: If a small amount of impurity is present in a sample, what will be its effect on the melting point…

A: Types of impurities that can be present in the sample: Miscible impurity: Such impurity is soluble…

Q: When would it be preferable to use a plastic volumetric flask instead of a glass flask?

Q: During recrystallization process, if your solution has come to room temperature and no crystals have…

Q: Describe the steps involved in recrystallization.

A: The process which is used to purify the impure compound from a solvent is known as recrystallisation…

Q: State the purpose of impregnating the filter paper with colloidion solution.

A: The pore size of ordinary filter paper is higher than that of colloidal particle. Hence the ordinary…

Q: 1. Did the sugar dissolve faster in the hot water or the cold water? 2. What would be another…

A: Sugar dissolves faster in hot water than in cold water. Because hot water has more energy. When…

Q: All are properties of ideal solvent for recrystallization except: Has a boiling point below the…

A: Recrystallization is a technique used to purify chemicals. Recrystallization involves the process of…

Q: Why is fractional distillation more efficient than simple distillation when purifying liquid…

A: Fractional distillation is used to separate a mixture of liquids with similar boiling points…

Q: The best purification method for separating high- vapor pressure solid from its contaminants is by…

A: Recrystallization is a process which is used to purify chemicals. By dissolving both impurities and…

Q: In recrystallization, fluted filter paper is used instead of a regular cone because it minimizes its…

A: In recrystallization, an impure solid compound is mixed with hot solvent to form a saturated…

Q: Why would it be possible to get less than 100% recovery for a recrystallization?

A: The question is based on the concept of recrystallization. recrystallization is a purification…

Q: how to use Gas Chromatography in Cosmetics Provide a procedure on how to do this example that you…

A: Principle of Gas Chromatography :- Gas chromatography differs from other forms of chromatography in…

Q: Describe a procedure "fix" to solve the following recrystallization problems: A. No crystals are…

Q: What is meant by water hardness? Explain the difference between temporary and permanent hardness.

A: Water is mainly divided into hard and soft water. The two metal cations such as Ca2+ and Mg2+causes…

Q: Cite one factor that affects percent yield during recrystalization.

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

Q: List the precautions to be taken to keep a balance functioning correctly.

A: Given : Balance functioning correctly To find : Precautions for proper functioning of balance…

Q: What is the theory behind recrystallization purifying a solid?

Q: Create a flowchart for the procedures in the determination of water hardness.

A: A question based on determining the hardness of water, which is to be accomplished.

Q: What roles do solvent, density and polarity play in liquid/liquid extraction

A: i. Solvent = In liquid - liquid extraction, the solvent which is needed to be extracted should not…

Q: How to get maximum % recovery from recrystallization and crude weight

Q: How can you prepare a set of solutions with concentrations spanning several orders of magnitudes? A.…

A: Explanation: A) serial dilution: A serial dilution is the stepwise dilution of a substance in…

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: BRIEFLY explain why steam distillation can be used to purify or isolate temperature-sensitive…

A: A question based on analytical separation that is to be accomplished.

Q: Define Extraction in chemistry ?

A: Extraction : Extraction is a way to separate the desired substance when it is mixed with others. The…

Q: What are the steps in diluting high concentration of stock solutions into lower concentration…

A: During dilution, concentration changes but no of moles remain same. So, M1V1 = M2V2 Let-…

Q: In the external calibration method used in water analysis, which volume should be kept constant? *

A: For an external standard quantitation i.e. known data from a calibration standard and unknown data…

Question

Why is recrystallization not applicable to samples which contain large amount of impurities?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Sample Preparation in Analytical Chemistry

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

How is recrystallization of an impure solid accomplished?
Is recrystallization a good method for purifying any product?
How are solvents chosen for recrystallization? (single solvent or mixed-solvent system).What are the properties of a good solvent system? How are crystals collected?
In recrystallization, is it always good to have a high % recovery? Explain. What are the advantages and disadvantages of recrystallization?
What is another factor that can influence fractional distillation’s success other than the number of theoretical plates?
What is the problem with using a solvent with a very high boiling point for recrystallization?
What is the function of a desiccant in a set-up of volatilization gravimetry? To remove nitrogen from the sample To remove sulfuric acid from the sample To remove water vapor from the sample To remove carbon dioxide from the sample
When isolating a solid compound after recrystallization, which is the appropriate technique to use, vacuum filtration or gravity filtration?
What are the criteria for a good recrystallization solvent?
In recrystallization, fluted filter paper is used instead of a regular cone because it minimizes its contact with the glass funnel. Why is this important?
Which is not required in recrystallization? a. solution is filtered at high temperature b. moderate volatility solvent c. saturated solution d. solvent must dissolve the impurities
how to use Gas Chromatography in Cosmetics Provide a procedure on how to do this example that you provided. Explain the procedure and what data would you gather?