Answered: What is the purpose of adding cold…

Science

Chemistry

What is the purpose of adding cold alcohol into the banana liquid? What reagent is used in research labs?

Chemistry for Today: General, Organic, and Biochemistry

9th Edition

ISBN:9781305960060

Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen

Publisher:Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen

Chapter19: Proteins

Section: Chapter Questions

Problem 19.53E

See similar textbooks

Related questions

Q: What is the purpose of the wash with water using separatory finnel? Bicarbonate?

A: The aqueous solution of the sodium bicarbonate having formula NaHCO3 and sodium carbonate having…

Q: Give at least three characteristics of chloroform that make it a good extracting solvent for the…

A: In nature alkaloids are found either as acidic salts or free bases.

Q: What is the melting point of crude and pure acetanilide?

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: why is boiling water not a recommended sterilization method?

A: why is boiling water not a recommended sterilization method is given below

Q: 2. When washing dishes, what works better, warm or cold water? Which do you thinkwill help the…

A: Hi, we are supposed to answer one question. To get the remaining questions solved please mention the…

Q: What is the procedure of ethanol distillation from yeast sugar wash?

A: Ethanol is manufactured from molasses by the fermentation process. Fermentation is the process of…

Q: How do soaps assist in the removal of oil and grease fromclothing?

A: Soaps are prepared by sponification reaction which includes the raising of temperature of fatty…

Q: If you are performing a solvent extraction using 1M HCl (Density slightly > 1.00 g/mL) and diethyl…

Q: 1- what mean by a " lanolin "? 2- why the final mixture became lumpy, what should you do ? 3- What…

A: Lanolin :- A Lanolin is a fatty substance obtained from wool and used in cosmetics, and ointments…

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: Why is an aqueous cream and procaine solution unstable and subject to cracking

Q: What specific impurities are removed by the ethanol and acetic acid in ethanol washes? Explain

A: Ethanol washes means washing the end product with ethanol. This procedure removes the impurities…

Q: Measure 55 mL of 40% ethanol Place 50 mL of ethanol in your distilling flask taking care that no…

A: The separation of mixtures of two liquids with different boiling points, such as alcohol and water…

Q: How do you know if you should add more sodium sulfate when you are drying your ether layer…

Q: What is an emulsion, how its form and how to avoid its formation?

A: Emulsions are biphasic liquid systems of two immiscible liquid phases. In emulsions, one phase is…

Q: Why must the stopper be removed from the separatory funnel before the lower layer is removed?…

A: It is important during solvent extraction, to remove stopper before the removal of lower layer of…

Q: How does the analyzed vinegar sample conform with the FDA standards?

A: According to the Food and Drug Administration(FDA) standards, the minimum amount of acidity that a…

Q: Reactions (chemical equation) of test samples with Benedict's reagent: Cyclohexanone Acetone…

A: Benedict's test is the test which shows the presence of aldehydes. This is done using Benedict's…

Q: Synthetic detergents have advantage over usual soaps as far as cleansing power is concerned. But use…

A: The pollution caused by synthetic detergents can be minimised by controlling the branching of…

Q: Suppose you have a mixture of water and your 2-chloro-2-methylbutane product in a separatory funnel.…

A: density of substance is defined as mass upon the volume

Q: Many operations in the chemical laboratory use “salting out” in the procedure. What do the purpose…

A: We have find out the purpose of salting out technique in the chemical laboratory.

Q: In the esterification experiment, the organic phase of diethyl ether is washed with 2 portions of 5%…

A: Esterification experiment:

Q: 1. Place 5 mL of starch solution in each of 2 test tubes. 2. Heat the test tubes to boiling and add…

Q: Mention two examples of emulsifying agents for o/w emulsions and w/oemulsions.

A: An emulsifier or emulsifying agent is a compound or substance that acts as a stabilizer for…

Q: 1. What is the most appropriate way to dispense 1.38 g of solid sodium chloride? With a graduated…

A: with the help of spatula is the most appropriate way to dispense 1.38g of Solid sodium Chloride.…

Q: melting point

A: When a solid is changed from its solid state to a liquid state, the temperature at which this…

Q: A fractional, or column distillation is a versatile method for separation of chemicals…

Q: Besides water, what is being removed from the ether layer when it is washed with a saturated NaCl…

Q: What is specific objectives in extraction of lycopene from watermelon.

A: Lycopene from watermelon can be extracted as follows:

Q: What is the function of each step or reagent used in the isolation of casein from milk? -Warm…

A: Most of the proteins show very less or minimum solubility at their isoelectric point and this…

Q: surface contamination after cooling the acetanilide in the recrystallization experiment

Q: Seliwanoff’s test – prepare 4 test tubes and place 5 drops of glucose, fructose, sucrose and xylose…

A: Seliwanoff test is used to distinguish between ketose (ketone group present) sugar and aldose(…

Q: Show the saponification of a solid soap.

Q: What is the purpose of Chromic acid test? a. What are the reagents used? b. Write oxidation…

A: The Jones reactant is used to oxidise aldehydes and alcohols while reducing chromic acid, producing…

Q: Before combining the oil and water phases when making moisturising lotion, the emulsifiers (Glyceryl…

A: Glyceryl stearate is insoluble in water, but soluble in oils.

Q: What are emulsions? Describe different types of emulsions giving one example of each type.

A: An emulsion is a mixture of two or more liquids that are immiscible (non-mixable or unblendable). It…

Q: Fill in the blanks: Safe distillation is promoted by using that prevent bumping during heating. It…

A: Distillation is a process of purification where liquid is converted to vapour and the vapours are…

Q: What are emulsions? What are their different types? Give an example of each type.

A: The colloidal solutions are the mixtures in which the substances are evenly suspended in a liquid…

Q: What is different about steam distillation

Q: The following are solvents used in Biochemistry Laboratory. Lipids are expected to dissolve in?…

A: Lipids are insoluble in polar solvents like water but highly soluble in non polar or weakly polar…

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: Part B: Miscibility of liquids 1. Place 10 drops of propan-2-ol into cach of two DRY semi-micro test…

A: According to the rule of solubility it is known that 'like dissolves like' which means that a polar…

Q: In the aspirin synthesis experiment, what is the reason for using as little ethanol as possible to…

A: We have to see some condition before we recrystallize our compound like,. The solvent should not…

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 observable result in the test for glycerol? Give the equation involved in the test for…

A: Glycerol has three hydroxyl group attached to the carbon. Glycerol is used as sweetner in food…

Q: Characteristics and functions of 1.Yellow soft paraffin 2. Liquid paraffin 3. Emulsifying wax 4…

A: Characteristics and function of Yellow soft paraffin and Liquid paraffin and Emulsifying wax…

Q: Caused by the severe dehydration effect of formaldehyde on tissue A. fumigation B.…

A: Caused by the severe dehydration effect of formaldehyde on tissue A. fumigation B.…

Question

What is the purpose of adding cold alcohol into the banana liquid? What reagent is used in research labs?

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

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

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

1. What is the difference between soap and detergent? 2. Draw the chemical structure of a soap and a detergent. Identify the polar and non-polar components of both structures.
3. Which is more effective as a disinfectant: ethyl alcohol or isopropyl alcohol? Choose only one and explain why. 4. What is the difference between cleaning, sanitizing, and disinfecting?
20. What is the best method used to separate the components of the mixture of benzene, toluene, and water? * Simple Distillation Steam Distillation O Fractional Distillation
2. Soap can be made using a variety of different fats, oils and bases. Suppose a student wanted to make a soft, liquid soap that lathers easily. What type(s) of fat/oil and base would you recommend? How would this differ from making a solid bar of soap? 3. Vegetable oils are typically liquid at room temperature, yet Crisco (which is made of vegetable oil) is solid at room temperature. Explain why/how this is the case. 4. Explain, with the use of a diagram how soap molecules work to clean “dirt” particles. 5. Amylase is a natural enzyme found in saliva. Describe this enzyme’s function. 6. Lactose is a sugar found in milk and other dairy products. Explain how it is broken down in most individuals. Explain lactose “intolerance”.
Most lipsticks are about 70% castor oil and wax. Why is lipstick more easily removed with petroleum jelly than with water?
Which milk beverage originated in Valencia, Spain? 2. What is the most popular soft drink in Scotland? 3. What is the most popular soft drink in the world? 4. What color is an Appletiser’s bottle? 5. Which actress was in the Schweppes Agrum commercial? 6. Which colorless, lemon and lime-flavored soft drink was created by The Coca-Cola Company? 7. Which soft drink is famous for the design of its pear-shaped bottle with pebbly texture? 8. Which Caribbean sparkling soft drink contains pineapple and grapefruit juice? 9. Which British soft drink’s name is a pun on the chemical formula for water? 10. Which soft drink has the same name as a Latin dance?
1. Which is a better disinfectant, 70% or 95% ethyl alcohol? Why?
3. Identify and label the parts of this soap molecule. Explain how molecules of soap remove oil and grease by the formation of micelles. H2 H2 H2 CH3 O`Na*