Why must the sodium stannite which is used in the identification of bismuth be prepared just prior to its use?

Q: Discuss the importance of the major steps in the aspirin synthesis, melting point determination, and…

A: Interpretation: Aspirin is a painkiller which can be synthesized when salicylic acid reacted with…

Q: Why was the sample being made alkaline with 3M KOH and heated for the qualitative test for NH4+?

A: The reason why was the sample being made alkaline with 3M KOH and heated for the qualitative test…

Q: After preparing the column, why should the silica get never to dry?

A: Column chromatography is a technique used to spearate organic  compounds from a mixture. It works…

Q: What is the reason for extracting the organic layer with NaOH solution? Explain and write the…

A: Many extractions are performed using NaOH solutions as the miscibility and compatibility of the…

Q: how the primary isotope effect can be used to prove the formation of benzyne in the SNAr reaction?…

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Q: Why should deionized water to be used throughout the analysis

A: In any type of analytical method, most of the time we use deionised water because-

Q: 4. If some of the product contained magnesium nitride rather than magnesium oxide, would the…

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Q: What are the consequences of Lanthanoid Contraction?

A: The consequences of Lanthanoid Contraction has to be given.

Q: How does the hydride generation method of sample introduction improve the sensitivity of some…

A: Hydride generation is an analytical technique that is very effective to separate hydride-forming…

Q: What is the conclusion of the reaction involved in the determination of dissolved oxygen in water…

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Q: What is the purpose of adding concentrated sulfuric acid and heating the mixture?

A: Acid is substance which release hydrogen ions when dissolved in water.

Q: What further testing should be done to extract and compare the composition of food dyes used In two…

A: Food coloring or the additives refers to a dye or a pigment or any substance which  imparts color to…

Q: In your job as a chemist for a regional analytical laboratory, you are expecting many samples that…

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Q: Under the conditions of your experiment, what is the stoichiometry of the reaction between EDTA and…

A: • Since we know that EDTA solution can be added to Magnesium salts and form an Mg-EDTA comolex •…

Q: In order to analyse mercury with AAS, which method will you prefer?

A: Explaination as below

Q: Why is it important to perform the qualitative tests in triplicate?

A: ANSWER : It is important to perform the qualitative tests in triplicate , because otherwise we would…

Q: What is the melting point of Penguinone and how is it extracted?

A: Please find your solution below : Penguinone is an organic compound. Its IUPAC name is…

Q: What is the purpose of adding Na2CO3 in the preparation of Na2S2O3•5H2O solution? Why the…

A: Solution is made up of two components: solute and solvent. Solute is present in minor amount.

Q: How you confirm the presence of Group IV cations using flame test?

A: The flame test is an analytical method that helps in the identification of the presence of unknown…

Q: What happens if the solvent concentration falls below that of the silica stationary phase? What is…

A: The chromatography technique consists of two phases mobile and stationary phase .Mobile phase is the…

Q: How can you differentiate the association or condensation method with disintegration or dispersion…

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

Q: Why did one solvent allow the yellow dye to be eluted, and why was another solvent used to elute the…

A: In column chromatography we have two type of phase first is stationary phase which is generally…

Q: 3. Halogens in medicines are determined by appropriate methods (Give the answer in the form A2, B5,…

A: The presence of halogen in medicines can be determined by the following methods.

Q: If 0.5 mL allylbenzene (118.07 g/mol) reacts with 1.5 equivalence to 0.5 mL 48% HBr, what volume of…

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Q: What is measured in an X-ray crystallography experiment? How does the output from X-ray differ from…

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Q: Why do droplets of methyl salicylate form when this reaction is diluted with water?

A: We will synthesize aspirin by mixing salicylic acid with acetic anhydride. The second ester product…

Q: How does the doubly labeled water method depend on the existence of isotopic equilibrium between the…

A: doubly labeled water method depend on the existence of isotopic equilibrium between the oxygen in…

Q: Among the choices in the photo, what will be the product if compound X is reacted with lithium…

A: Lithium aluminum hydride is a very good reducing agent. It can reduce aldehydes, ketones, carboxylic…

Q: Why to use acid or base for the development of fluorescent carbon dots?

A: Carbon-Dots are a kind of zero-dimensional nanomaterials. They are environment friendly and possess…

Q: Consider the structure of quinine below and identify a suitable analytical technique for its…

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Q: a. Describe the appearance of the mixture of iron and sulfur. b. What effect did the bar magnet have…

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

Q: Why is tin used to encapsulate a sample for combustion analysis?

A: Combustion analysis is a method used to estimate the elemental composition of pure compound by…

Q: Explain the major differences in macromolecular structural analysis using crystallography or cryo…

A: Techniques of structural analysis

Q: Halogens in medicines are determined by appropriate methods (Give the answer in the form A2, B5, and…

A: Following tests are conducted to determine the presence of halogens in medicines. The matches are as…

Q: Why is the sulfide and the ferricyanide must not be mixed together?

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Q: Question 10 What does Sodium bicarbonate do in water softening? Use the editor to format your answer…

A: Sodium bicarbonate is used for water softening.

Q: 1. Why should the line of the bottom of the paper be drawn on a pencil? 2. What would happen if the…

A: Concepts of Thin Layer Chromatography.

Q: Why are most of the ash-content determinations performed using dull red heat?

A: Ash content implies incombustible components remains  after heating the sample in furnace. Generally…

Q: For the synthesis to be performed in this experiment, on the basis of 1.00 g of copper(II) sulfate…

A: A question based on yield of the experiment, which is to be accomplished.

Q: 1 Write the equation for the decomposition of NAHCO3 that best fits your data. 2. What was the…

A: in decomposition reaction larger molecule(reactent) is breaking into two or more molecules…

Q: More polar molecules move more slowly through silica than less polar molecules. Why is silica gel…

A: In methyl orange is polar since it contains the ionic part of the molecule (SO3-Na+). However, in…

Q: What was the evidence for the reaction: Mg + O₂ ----> MgO production of a blue precipitate metal was…

A: In this reaction , Magnesium metal (Mg) is reacting with oxygen gas ( O2 ) to produce MgO .  This…

Q: 1. Illustrate/draw the reaction involved in the Wijs titration

A: According to Q&A guidelines of Bartleby, we are supposed to answer only the first question of…

Q: Why is the reaction mixture extracted with sodium bicarbonate? Give an equation and explain its…

A: