Isolation of Caffeine from a Tea Bag.edited (2)

Use the flow chart and chemical structures shown to answer the question below. X, Y, and Z in diethyl ether • add HCI (aq) • separate HN. но Вох 1 Вох 2 NH2 CH: organic phase aqueous phase X Y Z • add NaOH (aq) • separate • add NaOH (ag) • add diethyl ether • separate Воx 5 Вох 6 aqueous phase Вох 3 Вох 4 organic phase aqueous phase organic phase • add HCI (aq) • add diethyl ether • separate T Воx 7 Вох 8 organic phase aqueous phase Which compound(s) will be found in Box 4 layer? [Choose all that apply] n Y

In the empty box, provide appropriate reagents and reaction conditions necessary to convert Salicylic Acid to Aspirin. HO 2 OH Salicylic Acid OH Aspirin

Write the chemical equation for a pentanoate ion acting as base when it reacts with hydrochloric acid (HCI). Which is formula of this rule of reaction?

Alkaloids are basic nitrogen-containing compounds of plant origin, many of which are physiologically active when administered to humans. Ingestion of coniine, isolated from water hemlock, can cause weakness, labored respiration, paralysis, and eventually death. Coniine is the toxic substance in the “poison hemlock” used in the death of Socrates. In small doses, nicotine is an addictive stimulant. In larger doses, it causes depression, nausea, and vomiting. In still larger doses, it is a deadly poison. Solutions of nicotine in water are used as insecticides. Cocaine is a central nervous system stimulant obtained from the leaves of the coca plant.Classify each amino group in these alkaloids according to type (primary, secondary, tertiary, aliphatic, aromatic, heterocyclic).

is this statement correct?

Carboxylic acid is not the answer

The disinfection of drinking water to control microbial contaminants can form chemical disinfection byproducts. These compounds result from the reaction of chlorine with naturally occurring organic matter (the dissolved molecules that give natural water the yellow-greenish color). One class of disinfection byproducts is the malodorous and unpalatable chlorophenols. 2,4-dichlorophenol is one compound of this class. a) Calculate the vapor pressure p*L of 2,4-dichlorophenol at 60 °C using Tb and structural information only OH .CI M, = 163.0 g/mol Tm = 43.7 °C Tp = 213.0°C %3D %3D %3D

Please describe the polarity, hydrogen bonding, and nucleophilicity of water molecules.

safflower oil glyceryl tripalmitate (tripalmitin) beeswax sodium stearate cholesterol ty acid soap triacylalycerol wax GPL

Aspirin to Icy Hot The reagents used were aspirin, methanol, and sulfuric acid. Draw out the chemical reaction (showing structural formulas) between reactants aspirin and another molecule present in the reaction vessel that produce salicylic acid and ethanoic acid. Now, draw out the final step of the chemical reaction, producing methyl salicylate and another product from the reactants salicylic acid and methanol.

Complete the separation scheme for the distillation experiment

I don't get it at all. I need help. Can you help me? Can you explain to me, please?

Fractional distillation of Crude oil.

A) Write an equation for the synthesis of aspirin and give the names of the reactants and products. B) How many aspirin tablets can I prepare from 261 grams of acetylsalicylic acid (ASA)? Remember that the commercial aspirin tablet contains 325 mg ASA. C) What functional group of aspirin causes irritation to the lining of the stomach?

Indicate the name of the product or the reactants involved in the reaction.

Draw the organic products of the chlorination of propane in a limited supply of chlorine gas. Cl Cl H H HH H Н—с—с—с—н +с, — H H H Incorrect

Aspartame, an artificial sweetener used in Equal® and diet beverages, has the following structure. Identify the functional groups in Aspartame. II NH, O OH O 1= ester; I| = amide; III = amine O 1 = ester; I| = amine; III = amide O1= ether; I| = amide; III = amine O 1 = ether; I| = amine; III = amide O 1 = anhydride; Il = ketone; I|| = amine

Three samples labelled A,B, and C possess identical melting points: 99 degrees. When a 75/25 mixture of A and B is prepared, it’s melting point is 90-95 degrees. The melting point of a 50/50 mixture of A and C is 79-91 degrees. The melting point of a 25/75 mixture of B and C is 97-98 degrees. What information does this tell you about the identity of the 3 compounds? What would you expect an an approximate melting range for a 75/25 mixture of B and C?

Why is isopropyl alcohol (main ingredient in rubbing alcohol) used as a disinfectant?

Choose a pharmaceutical drug and answer the following questions about the drug: What is the IUPAC chemical name? Who discovered it or what company discovered it and when (if available)? What does the compound look like? Provide a picture of the compound. What are the functional groups in the compound? What are the medical uses for the drug? What is the mechanism of action of the drug (how does it work to affect the disease or malady)? How is it usually administered (ex. IV, pill, etc.)? What are the potential adverse effects of the drug?

Cream of tartar is a white powder sometimes used in baking. (It's what separates a tangy, chewy snickerdoodle from an ordinary cinnamon-coated sugar cookie. The acid in the cream of tartar gives snickerdoodles their distinctive tangy flavor, and the chew happens because cream of tartar prevents sugar in the cookie dough from crystalizing into crunchiness. Allrecipies.com)  Cream of tartar (KHC4H4O6) is the conjugate base salt of tartaric acid (shown to the right).  The Ka for another similar acid is 8.7×10-3.  What is the standard Gibb's free energy (in kJ/mol) for the dissociation of that other acid?

List below three characteristics that a good solvent must satisfy to recrystallize an organic compound that exists in a solid state at room temperature, example: benzoic acid.

Polyphenols are compounds found in many fruits, vegetables, tea, and wine. Predict the solubility of this polyphenol, gallic acid, in water.

Ester formation and ester hydrolysis are exactly the same reaction only written in reverse. General reaction of ester formation: H*, heat R—с—он + Н—о—R' R—с—о-R' + H,O carboxylic acid alcohol carboxylic or phenol ester General reaction of ester hydrolysis: || R—с—OR' + H—оН R—с—оН +R—ОH ester carboxylic acid alcohol or phenol What determines which direction the reaction proceeds and what actually forms? o the boiling point of the carboxylic acid o the presence (or absence) of heat as well as the concentration of reactants and products o the molecular weight of reactants and products o the presence (or absence) of heat as well as the catalyst

which is the correct option?