Q: Place 5 mL of starch solution in a test tubes. Heat the test tubes to boiling and add 1 mL of…
A:
Q: What substance is used to help dry your sample rapidly?
A: The substances that rapidly absorb moisture from the surrounding atmosphere or dry it out are called…
Q: Explain the methods of preparations of the Decorative paints
A: Paint consists of pigment (used to give color), solvents ( make it easier to apply), resins (help…
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: what glassware and quipment is being used in this photo of lab equipment?
A: In the picture given in the question, the process of distillation is being carried out. If we have a…
Q: What is the difference between the reaction of soap-water and synthetic detergent-water mixture to…
A: The composition of soaps is sodium stearate and composition of detergents is generally sodium…
Q: What is the drying agent used? What is the purpose of this drying agent?
A: Organic compounds can be defined as the compounds that contain carbon and hydrogen atoms.
Q: What is the purpose of the filter paper moistened with ammoniacal silver nitrate solution in the…
A: The functional groups are the key components associated with a molecule that is highly responsible…
Q: How do strong and weak synthetic ion-exchange resins differ in structure?
A: Ion-exchange resins: Resins with large pours cavity is hold the ions by its ionic property. Cationic…
Q: what is the arrow pushing mechanism for this process?
A: The selectivity of electron transfer from SmI2 depends on ligands and additives, solvent, and method…
Q: After removing the aqueous layer from the separatory funnel, how did you remove water from your…
A: By the separatory funnel, one can separate the organic layer and the aqueous layer. During this…
Q: What is the purpose of drying the remaining solid after extraction under a heat lamp?
A: The process, in which water and other solvent is evaporated from the solid-liquid mixture to form…
Q: what chemical reactions should not be performed on Merrifield polystyrene resin?
A: In the given problem we need to speculate what kind of reactions should not be performed on…
Q: Why is steam distillation and not fraction distillation used to extract limonene from citrus peels.
A: Steam distillation: It is a purifying technique which includes distilling of water with volatile and…
Q: Describe the five processes of purifying organic compounds and give one example for each.…
A: Various methods are used for the purification of organic compounds.
Q: Lab Activity: Isolation of Lycopene from Tomato Paste What is the drying agent used? What is the…
A: The lycopene extract is washed with aqueous NaCl and K2CO3 to remove any impurity.
Q: 17. What is the Ceiling and fluidity temperature ? 18. This polystyrene has a number average…
A: "Since you have asked multiple question, we will solve the first question for you preferably. If you…
Q: While recrystallizing, what should you do if you have solid particles that don’t dissolve even after…
A: Recrystallization is the process by which non volatile organic solids are purified. In this method…
Q: Which is not a drying agent? anhydride CaCl2 sodium bicarbonate sodium sulfate none • all
A: Drying agent are those which absorbs moisture from air.
Q: look for at least three extraction methods for perfumery materials.
A: There are several methods which are used for extraction of the perfumery materials from different…
Q: Synthetic method for Preparation of a powder of homo
A: A powder of homogeneous mixtures is composed up of two components adhered to each other to form…
Q: Identify It is used to remove the traces of water that may be present in the organic layer after…
A: An organic layer may be washed with brine ( which is a saturated solution of NaCl ). The purpose of…
Q: To purify benzil crystals and get rid of any leftover traces of benzoin, what would be the best…
A:
Q: What should you do if there is some question about which layer is the organic one during an…
A:
Q: If 15 mL of dichloromethane was used at one time for extraction, will the amount of the substance…
A:
Q: Name the water purified above separating technique
A: WATER PURIFICATION The process of purifying water involves taking out unwanted chemicals, biological…
Q: Draw it with a flow chart and briefly explain the isolation method that can be used to separate…
A: Plant (or leave) extraction is an extraction method where certain chemical constituents present in…
Q: In the experimentation where we oxidize cyclohexanol with bleach (NaOCl). Why is it necessary to…
A: Because they are strong oxidizing agents, bleaches such as chlorine and sodium hypochlorite are able…
Q: Briefly discuss emulsion and suspension polymerization techniques.
A: Emulsion polymerization: The emulsion polymerization include a) a water soluble initiator, b) a…
Q: Fill in the blanks: During the "salting-out" process in an extraction procedure, the replaces the
A: During Salting out during the extraction process there are certain proteins which are dissolved in…
Q: What is specific objectives in extraction of lycopene from watermelon.
A: Lycopene from watermelon can be extracted as follows:
Q: What is procedures in extraction of lycopene from watermelon.
A: Lycopene from watermelon can be extracted as follows:
Q: What is the purpose of evaporating off a majority of the pentane solution before spotting the TLC…
A: In thin-layer chromatography, TLC, in order to see the spot, visualization techniques are used in…
Q: After acid-base extraction why is it important to wash organic layer at least once with pure water?
A: A question based on quantitative analysis, which is to be accomplished.
Q: What is the purpose of using bleach in the iodoform test? Please Explain.
A: In the Iodoform test is Sodium hypoiodite, NaOI is used that is similar to NaOCl.
Q: What happen to the glowing wood splint when it is inserted inside the test tube?
A: Given, Glowing wood splint is inserted into a test tube Required,…
Q: What is the purpose of extracting coffee three times with dichloromethane? Why not 5 or 6 times?
A: Caffeine is a derivative of purine which consists of three specific functional groups. Thee groups…
Q: Explain what happens in the Hydrolysis of Esters with Acetic acid. Place 30 mL of ethyl acetate…
A:
Q: What is magnesium sulfate used for at the end of the extraction? How can it be removed?
A: Magnesium sulphate is a drying agent, 8t is used to remove the water from organic extract. Magnesium…
Q: Why is it required to add drying agent like sodium sulphate to the organic layer which may contain…
A: In an organic solution, there are often traces of water present because water is slightly soluble in…
Q: At the end of your experiment, left over reagents should be disposed of in a(n) Regular garbage…
A: At the end of your experiment, left over reagents should be disposed of in an
Q: What are the benefits of using slightly more solvent than necessary when dissoving a compound for a…
A: Recrystallization is a process of purifying a solute when it is soluble in the solvent only on…
Q: Is water always used in steam distillation?
A: Organic compounds can be defined as compounds that contain hydrogen and carbon atoms.
Q: What is the suitable method of removal of unreacted methacrylic acid from the resin product?
A: Interpretation - To tell about the suitable method of removal of unreacted methacrylic acid from the…
Q: A group claims that they acquired 6 grams of iodoform from 8 grams of iodine crystals reacted with…
A: Iodine reacts with acetone in the presence of NaOH to form iodoform (CHI3). Iodoform formation is…
Q: Why is 95% alcohol a good solvent for extraction?
A: The substance which is present in lesser amount is termed as solute. The substance which is present…
Q: what
A:
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
- After separating layers in an extraction, it is necessary to “dry” the organic layer with a substance that absorbs water. Explain why this is necessary.What is the drying agent used? What is the purpose of this drying agent?What is the purpose of washing the crude product with petroleum ether before filtration?
- what chemical reactions should not be performed on Merrifield polystyrene resin?2. What is the major disadvantage and the major advantage of using anhydrous sodium sulfate for drying organic liquids?Organic Chemistry Laboratory purposes: a. Why is it important to vent the separatory funnel (directed away from your face and body) after vigorous shaking? b. What is an disadvantage of using too little drying agent?
- What are emulsions? Why do they form during extractions? How is their formation minimized?What is the most common filter paper used in the laboratory? A. Cellulose fiber filter B. Glass fiber filter C. Membrane filter (polytetrafluoroethylene, cellulose nitrate)What is the purpose of drying and describe the advantages and disadvantages of traditional outdoor drying and air drying in a drying room ( indoor drying ) and describe the factors that most influence the drying .