Concentrated sulphuric acid is used in this experiment to O help the crystal growth of acetylsalicylic acid speed up the reaction of aspirin synthesis increase the activation energy avoid impurities getting trapped into the aspirin crystals

Q: In an extraction procedure, it is advisable to: O put the aqueous layer down the drain put the…

A:

Q: Why should we Study Elimination Reactions?

A: There are many types type of organic reactions: Addition reactions. Elimination reactions.…

Q: Concentrated sulphuric acid is used in this experiment to help the crystal growth of acetylsalicylic…

A: Aspirin is an anti-inflammatory drug. It is used to relieve pain from conditions like headaches,…

Q: what would be the implications if the volume reduction is skipped in the recrystallization

A: Recrystallization is a purification technique often employed in the labs. it is based on the…

Q: Anna has a solid sample and did use an aqueous solvent to dissolve it. She observed that some of her…

A: It is very crucial to take a suitable solvent for dissolution while performing any analytical…

Q: Consider the structures of cholesterol and ?-carotene. Which do you think will have the highest Rf…

A: Due to technical error ,unable to provide you the solution. Please resubmit the question once again

Q: When setting up a column, what is the reason for adding a layer of sand on top of the adsorbent…

A: Column chromatography is a technique that separates substances based on differential adsorption of…

Q: Explain why there was no solid material remaining after heating the ammonium carbonate in this…

A: We are heating ammonium carbonate in this experiment.  The chemical formula of ammonium carbonate is…

Q: 1. The substance to be analyzed – is white, highly soluble in water salt. Addition of diluted…

A:

Q: In the synthesis of Sudan-1, the following precursors were used: Aniline – 0.2 mL β-naphthol –…

A: Sudan-1 dye is prepared by the conversion of 1 mole of aniline to 1 mol benzene diazonium chloride…

Q: On recrystallization, if the volume reduction step was skipped, what would be the implications?

A: Recrystallization = A purification process, In this process we dissolve a impure solid into a…

Q: Chemistry why cant 99% ethanol be obtained from aqueous ethanol by simple distilation? Can it be…

A: The mixture of ethanol and water forms an azeotropic mixture, which is also known as a constant…

Q: What is the purpose of the ammonium acetate in this experiment? How does it affect the ppt?

A: An ammonium salt obtained by reaction of ammonia with acetic acid. A deliquescent white crystalline…

Q: 5. Calcium carbonate (marble) boiling stones must not be used in the experiment because they will…

A: Boiling stones or boiling chips are insoluble, porous and small stones of either silicon carbide or…

Q: this experiment, yield was not important, but in onsite lab, as well as large-scale processes, a…

A: To answer question 14 and 15.

Q: Why is it a good idea to perform three trials at each concentration? How would you modify the…

A: Multiple (Minimum of 3) trials in a experiment: When carrying out experiments, it is a nice decision…

Q: Data Sheet with Sample Results Note: results that require calculations are purposely left blank and…

A: Solution Mass of NaCl dissolved = (mass of beaker+stirring bar+NaCl)-(mass of beaker+stirring bar) =…

Q: In this experiment, the eluant is O 1) petroleum ether O 2) water 3) dichloromethane 4) ethyl…

A: In the given question we have to choose the correct eluent used in the column chromatography.…

Q: 13. Is the contact area greater for 1 cube with sides of 2cm or for this same cube divided into 10…

A: The cube divided into 10 small pieces will react faster as surface area will increase.

Q: Why is it not necessary to test the supernatant from both trial samples for the excess reactant is…

A: In step 9, BaCl2 is added to test tube 1, and Na3PO4 is added to test tube 2. Precipitation occurs…

Q: Calculate the Initial Concentration, in units of Molarity, for each reagent used in each of the…

A: Molarity of the prepared solutions for the purpose of experiment or the initial concentration of…

Q: In an EAS Reaction the compounds 5.0g of acetanilide, 0.2g potassium bromate, 5ml acetic acid, 0.9…

A: Acetanilidine = 5.0 g KBrO3 = 0.2 g CH3COOH = 5.0 mL HBr = 0.9 mL NaHSO3 = 5 mL

Q: I need to write about the mechanism and how it happens in this lab please help me explain what…

A: In the above reaction hydroboration takes place where CHO group reduced to -CH2OH.

Q: 3. Differentiate the dichlorocarbene and Smith-Simmons reagents.

A: Concept is based on Carbenes:

Q: Why are ice and water added to the reaction mixture after the reaction was completed?

A: The reason for why ice and water were added to the reaction mixture after the reaction was completed…

Q: why is it best not to use water in an Grignard reaction? Also what's the benefit of using a cotton…

A: Introduction :  We have to tell why it's not good to use water in grignard reagent .

Q: Predict the retrosyntheic route for this molecule (will need ethylene oxide to be one  of the…

A: Retrosynthesis process of 1,2- epoxycyclopentane involves many step like elimination reaction ,…

Q: What would you have expected to happen if the files were instead place in a dark room at the…

A: An acid is a substance that can enhance the concentration of hydrogen ions (H+) in the aqueous…

Q: In most distillations, the total volume of liquid obtained (distillate + residue) is not equal to…

A: Given that in most of the distillations, the total volume of the liquid obtained is not equal to the…

Q: Nitrous Acid Test Procedure: Make a solution of  4 grams NaNO3 in 16 mL water. Put 2 mL of…

A: Nitrous acid test is the test used to distinguish between primary, secondary and tertiary amines.

Q: The procedure requires the use of a 1.1 molar equivalent of benzyltriphenylphosphonium chloride…

A: Given data, Molar mass of BTPC = 388.90 g/mol Volume of benzaldehyde = 1.86 mL = 1.86cm3 Molar mass…

Q: In most distillations, the total volume of liquid obtained (distillate + residue) is not equal to…

A: In most distillations, the total volume of liquid obtained (distillate + residue) is not equal to…

Q: Select the best reagents for the reaction below. ?

A: Alkyne is reduced into trans alkene in this reaction

Q: Usually the aqueous layer is extracted multiple times with organic. This is more common during a…

A: Extraction is the first stage of purification after a reaction ends. It involves the removal of…

Q: In shake and bake reactions, why might it be beneficial if one of the precursors is volatile?

A: Introduction: Shake and bake is a method to produce methamphetamine drug. As the name suggest, it is…

Q: (a) Briefly explain why alkyl halides cannot replace bromobenzene in the Heck reaction. (b) Predict…

A: a  The oxtdalive addition reactions of halides other than vinyl  or aryl usually are very sluggish.…

Q: A student uses exactly 15 mL of a 1M sodium hydroxide solution when setting up their azo coupling…

A: Given:

Q: Synthesis of Orange II dye.

A: Orange II Synthesis a. Cool 10 mL of 10% NaOH in a 400 mL beaker. Add 1.8 g of 2-naphthol to this…

Q: Choose all that apply. In Experiment 4, we use a mixture of 50% water and 50% isopropyl alcohol as…

A: As we know "Like dissolve like". The polar solute can be dissolved in polar solvent and non-polar…

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: Do your results agree with the predicted isomer distribution on the basis of the knowledge of the…

A: Dehydration reaction is the type of reaction in which water is removed and unsaturated compound is…

Q: steps of the mechanism of extraction and drying of ethyl acetate with caffeine and water.

A: Please note that there is a mistake in the question and the correct statement should be  'caffeine…

Q: In the original mixtures, test tube 1 contained magnesium and a zinc compound, and test tube 2…

A: An atom is the simplest unit of matter and the combination of two atoms produces a molecule. For…

Q: Briefly explain how you determined when the reaction was complete PROCEDURE To a six inch test tube…

A: Please find your solution below : Chromatography is an analytical technique used for the separation…

Q: Prelab question

A: The solubility of sulfanilamide in 95% ethyl alcohol at 780C can be known from the figure 11.2 as…

Q: w Solid, unknown acid were contaminated with pure, adsorbed water prior to weighing out the Sample,…

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

Q: 10. Chapter 16: Organic synthesis- The Last Two Steps in a Multi-step Synthesis of Methyl…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…

Q: one experiment involved the addition of magnesium metal to concentrated hydrochloric acid. 1. what…

A: When the hydrochloric acid is reacted with the magnesium, then it will result in a chemical change.

Q: this experiment is all about the synthesis of phthaleins, where phthalic anhydride is added to a 0.1…

A: Indicators: these are the substances that changes color when added to acidic or basic solutions.…

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.