What is an emulsion? Mention two techniques that can be used to eliminate emulsions in an...
Homework Answers
It is a fine dispersion of minute droplets of one liquid in another in which it is not soluble or miscible.The process of turning a liquid mixture into an emulsion is called emulsification. e.g.
- Oil and water mixtures are emulsions when shaken together. The oil will form drops and disperse throughout the water.
Techniques that can be used to eliminate emulsion are:
Centrifugation. It is the best way to break an emulsion using centrifugal forces
Ultrasonic bath. Place the emulsion extract/solvent into an ultrasonic bath with ice. The liquid phases will separate
Add Answer to:
What is an emulsion? Mention two techniques that can be used to
eliminate emulsions in an...
1. Why is vigorous trituration required to prepare emulsions? 2. Explain the difference between creaming and...
1. Why is vigorous trituration required to prepare emulsions? 2. Explain the difference between creaming and coalescence. 3. Emulsions are considered to be physically and thermodynamically unstable systems. Describe an approach that can be used to enhance the stability of an emulsion. 4. Using the 4:2:1 method, what are the consequences of not adding in the water all at once during preparation of the primary emulsion?
distillation techniques that can be used to purify a compound 2. (2 pts) Name two known...
distillation techniques that can be used to purify a compound 2. (2 pts) Name two known to decompose at a temperature below its boiling point. Explain how each is capable of circumventing this problem.
distillation techniques that can be used to purify a compound 2. (2 pts) Name two known to decompose at a temperature below its boiling point. Explain how each is capable of circumventing this problem.
Describe two techniques that can be used to identify polymorph forms of a drug substance. When...
Describe two techniques that can be used to identify polymorph forms of a drug substance. When should a less stable polymorphic form of a drug substance be used? What is the effect of using a less stable polymorph on shelf-life and explain your reasoning. Clear , detailed answer required please
what are some techniques used on animals for neuroanataomical studies? what are some techniques used on...
what are some techniques used on animals for neuroanataomical studies? what are some techniques used on humans for neuroanatomical studies?
What techniques can be used to verify that subcloning has successfully produced the desired plasmid?
What techniques can be used to verify that subcloning has successfully produced the desired plasmid?
Post-Lab 3. You vigourously shake a separatory funnel, and notice an emulsion forming. What can you...
Post-Lab 3. You vigourously shake a separatory funnel, and notice an emulsion forming. What can you do to help break up the emulsion? 4. Complete the following acid-base reaction and provide the keq. Is sodium bicarbonate (NaHCO) a suitable base in this situation? + NaHCO, 5. A mixture of benzoic acid and a neutral nonpolar compound is dissolved in ether and mixed thoroughly with aqueous sodium bicarbonate. What is the organic chemical species that is present in the ether layer?...
Analyze the techniques that can be used to prevent SQL injection and explain why it is...
Analyze the techniques that can be used to prevent SQL injection and explain why it is important to be aware of these techniques.
5. Mention two important techniques for a financial analysis Exercise 1: The GAT company makes pants...
5. Mention two important techniques for a financial analysis Exercise 1: The GAT company makes pants and the costs involved per unit are the following: Table 1: Information on unit costs Description Costs Direct materials. $ 3.00 Direct work 2.40 Variable general expenses 1.80 Variable marketing expenses 0.80 Total fixed marketing expenses were $ 26,000, while administrative fixed expenses amounted to $ 70,000 for the past year. The price of the pants was $ 20.00 each. 6. How is the...
Describe three techniques that can be used to increase the productivity of a picker. What additional costs do they have...
Describe three techniques that can be used to increase the productivity of a picker. What additional costs do they have over a simple paper list?
Using what you learned about frequency response techniques, answer the following A. What are the common...
Using what you learned about frequency response techniques, answer the following A. What are the common indices used to quantify the level of relative stability in a system' B. Mention the typical requirements in frequency response design that must be satisfied for a system for satisfactory performance
distillation techniques that can be used to purify a compound 2. (2 pts) Name two known to decompose at a temperature below its boiling point. Explain how each is capable of circumventing this problem.
distillation techniques that can be used to purify a compound 2. (2 pts) Name two known to decompose at a temperature below its boiling point. Explain how each is capable of circumventing this problem.
Post-Lab 3. You vigourously shake a separatory funnel, and notice an emulsion forming. What can you do to help break up the emulsion? 4. Complete the following acid-base reaction and provide the keq. Is sodium bicarbonate (NaHCO) a suitable base in this situation? + NaHCO, 5. A mixture of benzoic acid and a neutral nonpolar compound is dissolved in ether and mixed thoroughly with aqueous sodium bicarbonate. What is the organic chemical species that is present in the ether layer?...
Using what you learned about frequency response techniques, answer the following A. What are the common indices used to quantify the level of relative stability in a system' B. Mention the typical requirements in frequency response design that must be satisfied for a system for satisfactory performance
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago